start adding of support business_connection_id in sending requests

tgbotapi.core/api/tgbotapi.core.api

@@ -7170,6 +7170,33 @@ public final class dev/inmo/tgbotapi/types/BotShortDescription$Companion {
 	public final fun serializer ()Lkotlinx/serialization/KSerializer;
 }
 
+public final class dev/inmo/tgbotapi/types/BusinessChatId : dev/inmo/tgbotapi/types/IdChatIdentifier {
+	public static final field Companion Ldev/inmo/tgbotapi/types/BusinessChatId$Companion;
+	public static final synthetic fun box-impl (Lkotlin/Pair;)Ldev/inmo/tgbotapi/types/BusinessChatId;
+	public static fun constructor-impl (JLjava/lang/String;)Lkotlin/Pair;
+	public static fun constructor-impl (Lkotlin/Pair;)Lkotlin/Pair;
+	public fun equals (Ljava/lang/Object;)Z
+	public static fun equals-impl (Lkotlin/Pair;Ljava/lang/Object;)Z
+	public static final fun equals-impl0 (Lkotlin/Pair;Lkotlin/Pair;)Z
+	public fun getBusinessId-T-_HSQI ()Ljava/lang/String;
+	public static fun getBusinessId-T-_HSQI (Lkotlin/Pair;)Ljava/lang/String;
+	public synthetic fun getBusinessId-nXr5wdE ()Ljava/lang/String;
+	public fun getChatId-iyD94Bc ()J
+	public static fun getChatId-iyD94Bc (Lkotlin/Pair;)J
+	public final fun getChatIdWithBusinessConnectionId ()Lkotlin/Pair;
+	public fun getThreadId-S3HF-10 ()Ldev/inmo/tgbotapi/types/MessageThreadId;
+	public static fun getThreadId-S3HF-10 (Lkotlin/Pair;)Ldev/inmo/tgbotapi/types/MessageThreadId;
+	public fun hashCode ()I
+	public static fun hashCode-impl (Lkotlin/Pair;)I
+	public fun toString ()Ljava/lang/String;
+	public static fun toString-impl (Lkotlin/Pair;)Ljava/lang/String;
+	public final synthetic fun unbox-impl ()Lkotlin/Pair;
+}
+
+public final class dev/inmo/tgbotapi/types/BusinessChatId$Companion {
+	public final fun serializer ()Lkotlinx/serialization/KSerializer;
+}
+
 public final class dev/inmo/tgbotapi/types/CallbackQueryId {
 	public static final field Companion Ldev/inmo/tgbotapi/types/CallbackQueryId$Companion;
 	public static final synthetic fun box-impl (Ljava/lang/String;)Ldev/inmo/tgbotapi/types/CallbackQueryId;
@@ -7207,6 +7234,8 @@ public final class dev/inmo/tgbotapi/types/ChatId : dev/inmo/tgbotapi/types/IdCh
 	public fun equals (Ljava/lang/Object;)Z
 	public static fun equals-impl (JLjava/lang/Object;)Z
 	public static final fun equals-impl0 (JJ)Z
+	public fun getBusinessId-nXr5wdE ()Ljava/lang/String;
+	public static fun getBusinessId-nXr5wdE (J)Ljava/lang/String;
 	public fun getChatId-iyD94Bc ()J
 	public fun getThreadId-S3HF-10 ()Ldev/inmo/tgbotapi/types/MessageThreadId;
 	public static fun getThreadId-S3HF-10 (J)Ldev/inmo/tgbotapi/types/MessageThreadId;
@@ -7229,6 +7258,8 @@ public final class dev/inmo/tgbotapi/types/ChatIdWithThreadId : dev/inmo/tgbotap
 	public fun equals (Ljava/lang/Object;)Z
 	public static fun equals-impl (Lkotlin/Pair;Ljava/lang/Object;)Z
 	public static final fun equals-impl0 (Lkotlin/Pair;Lkotlin/Pair;)Z
+	public fun getBusinessId-nXr5wdE ()Ljava/lang/String;
+	public static fun getBusinessId-nXr5wdE (Lkotlin/Pair;)Ljava/lang/String;
 	public fun getChatId-iyD94Bc ()J
 	public static fun getChatId-iyD94Bc (Lkotlin/Pair;)J
 	public final fun getChatIdWithThreadId ()Lkotlin/Pair;
@@ -7262,6 +7293,7 @@ public final class dev/inmo/tgbotapi/types/ChatIdentifierKt {
 	public static final fun getUserLink (Ldev/inmo/tgbotapi/types/chat/User;)Ljava/lang/String;
 	public static final fun getUserLink-0218hRU (J)Ljava/lang/String;
 	public static final fun getUserLink-HZVsHAI (J)Ljava/lang/String;
+	public static final fun toBusinessChatId-X6RVWW0 (Ldev/inmo/tgbotapi/types/IdChatIdentifier;Ljava/lang/String;)Ldev/inmo/tgbotapi/types/IdChatIdentifier;
 	public static final fun toChatId (B)Ldev/inmo/tgbotapi/types/IdChatIdentifier;
 	public static final fun toChatId (I)Ldev/inmo/tgbotapi/types/IdChatIdentifier;
 	public static final fun toChatId (J)J
@@ -7527,6 +7559,9 @@ public final class dev/inmo/tgbotapi/types/CommonKt {
 	public static final field botIsMemberField Ljava/lang/String;
 	public static final field botUsernameField Ljava/lang/String;
 	public static final field businessConnectionIdField Ljava/lang/String;
+	public static final field businessIntroField Ljava/lang/String;
+	public static final field businessLocationField Ljava/lang/String;
+	public static final field businessOpeningHoursField Ljava/lang/String;
 	public static final field buttonField Ljava/lang/String;
 	public static final field buttonTextField Ljava/lang/String;
 	public static final field cacheTimeField Ljava/lang/String;
@@ -8097,6 +8132,7 @@ public final class dev/inmo/tgbotapi/types/FullChatIdentifierSerializer : kotlin
 
 public abstract interface class dev/inmo/tgbotapi/types/IdChatIdentifier : dev/inmo/tgbotapi/types/ChatIdentifier {
 	public static final field Companion Ldev/inmo/tgbotapi/types/IdChatIdentifier$Companion;
+	public abstract fun getBusinessId-nXr5wdE ()Ljava/lang/String;
 	public abstract fun getChatId-iyD94Bc ()J
 	public abstract fun getThreadId-S3HF-10 ()Ldev/inmo/tgbotapi/types/MessageThreadId;
 }
@@ -8104,10 +8140,12 @@ public abstract interface class dev/inmo/tgbotapi/types/IdChatIdentifier : dev/i
 public final class dev/inmo/tgbotapi/types/IdChatIdentifier$Companion {
 	public final fun invoke-0PTMirw (J)J
 	public final fun invoke-FNqv5JM (JLdev/inmo/tgbotapi/types/MessageThreadId;)Ldev/inmo/tgbotapi/types/IdChatIdentifier;
+	public final fun invoke-y2sHuGA (JLjava/lang/String;)Ldev/inmo/tgbotapi/types/IdChatIdentifier;
 	public final fun serializer ()Lkotlinx/serialization/KSerializer;
 }
 
 public final class dev/inmo/tgbotapi/types/IdChatIdentifier$DefaultImpls {
+	public static fun getBusinessId-nXr5wdE (Ldev/inmo/tgbotapi/types/IdChatIdentifier;)Ljava/lang/String;
 	public static fun getThreadId-S3HF-10 (Ldev/inmo/tgbotapi/types/IdChatIdentifier;)Ldev/inmo/tgbotapi/types/MessageThreadId;
 }
 
@@ -12868,6 +12906,47 @@ public final class dev/inmo/tgbotapi/types/chat/Bot$Companion {
 	public final fun serializer ()Lkotlinx/serialization/KSerializer;
 }
 
+public abstract interface class dev/inmo/tgbotapi/types/chat/BusinessChat : dev/inmo/tgbotapi/types/chat/Chat {
+	public static final field Companion Ldev/inmo/tgbotapi/types/chat/BusinessChat$Companion;
+	public abstract fun getId-y8AA8dk ()Lkotlin/Pair;
+	public abstract fun getOriginal ()Ldev/inmo/tgbotapi/types/chat/PrivateChat;
+}
+
+public final class dev/inmo/tgbotapi/types/chat/BusinessChat$Companion {
+	public final fun serializer ()Lkotlinx/serialization/KSerializer;
+}
+
+public final class dev/inmo/tgbotapi/types/chat/BusinessChatImpl : dev/inmo/tgbotapi/types/chat/PreviewBusinessChat {
+	public static final field Companion Ldev/inmo/tgbotapi/types/chat/BusinessChatImpl$Companion;
+	public synthetic fun <init> (Lkotlin/Pair;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public final fun component1-y8AA8dk ()Lkotlin/Pair;
+	public final fun component2 ()Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;
+	public final fun copy-rh-56jM (Lkotlin/Pair;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;)Ldev/inmo/tgbotapi/types/chat/BusinessChatImpl;
+	public static synthetic fun copy-rh-56jM$default (Ldev/inmo/tgbotapi/types/chat/BusinessChatImpl;Lkotlin/Pair;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;ILjava/lang/Object;)Ldev/inmo/tgbotapi/types/chat/BusinessChatImpl;
+	public fun equals (Ljava/lang/Object;)Z
+	public synthetic fun getId ()Ldev/inmo/tgbotapi/types/IdChatIdentifier;
+	public fun getId-y8AA8dk ()Lkotlin/Pair;
+	public fun getOriginal ()Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;
+	public synthetic fun getOriginal ()Ldev/inmo/tgbotapi/types/chat/PrivateChat;
+	public fun hashCode ()I
+	public fun toString ()Ljava/lang/String;
+}
+
+public final class dev/inmo/tgbotapi/types/chat/BusinessChatImpl$$serializer : kotlinx/serialization/internal/GeneratedSerializer {
+	public static final field INSTANCE Ldev/inmo/tgbotapi/types/chat/BusinessChatImpl$$serializer;
+	public fun childSerializers ()[Lkotlinx/serialization/KSerializer;
+	public fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Ldev/inmo/tgbotapi/types/chat/BusinessChatImpl;
+	public synthetic fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Ljava/lang/Object;
+	public fun getDescriptor ()Lkotlinx/serialization/descriptors/SerialDescriptor;
+	public fun serialize (Lkotlinx/serialization/encoding/Encoder;Ldev/inmo/tgbotapi/types/chat/BusinessChatImpl;)V
+	public synthetic fun serialize (Lkotlinx/serialization/encoding/Encoder;Ljava/lang/Object;)V
+	public fun typeParametersSerializers ()[Lkotlinx/serialization/KSerializer;
+}
+
+public final class dev/inmo/tgbotapi/types/chat/BusinessChatImpl$Companion {
+	public final fun serializer ()Lkotlinx/serialization/KSerializer;
+}
+
 public abstract interface class dev/inmo/tgbotapi/types/chat/ChannelChat : dev/inmo/tgbotapi/types/chat/SuperPublicChat {
 	public static final field Companion Ldev/inmo/tgbotapi/types/chat/ChannelChat$Companion;
 	public abstract fun getId-tHkBKVM ()J
@@ -13491,6 +13570,51 @@ public final class dev/inmo/tgbotapi/types/chat/ExtendedBot$Companion {
 	public final fun serializer ()Lkotlinx/serialization/KSerializer;
 }
 
+public abstract interface class dev/inmo/tgbotapi/types/chat/ExtendedBusinessChat : dev/inmo/tgbotapi/types/chat/BusinessChat, dev/inmo/tgbotapi/types/chat/ExtendedChat {
+	public static final field Companion Ldev/inmo/tgbotapi/types/chat/ExtendedBusinessChat$Companion;
+	public abstract fun getOriginal ()Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChat;
+}
+
+public final class dev/inmo/tgbotapi/types/chat/ExtendedBusinessChat$Companion {
+	public final fun serializer ()Lkotlinx/serialization/KSerializer;
+}
+
+public final class dev/inmo/tgbotapi/types/chat/ExtendedBusinessChatImpl : dev/inmo/tgbotapi/types/chat/ExtendedBusinessChat, dev/inmo/tgbotapi/types/chat/ExtendedChat {
+	public static final field Companion Ldev/inmo/tgbotapi/types/chat/ExtendedBusinessChatImpl$Companion;
+	public synthetic fun <init> (Lkotlin/Pair;Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChat;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public final fun component1-y8AA8dk ()Lkotlin/Pair;
+	public final fun component2 ()Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChat;
+	public final fun copy-rh-56jM (Lkotlin/Pair;Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChat;)Ldev/inmo/tgbotapi/types/chat/ExtendedBusinessChatImpl;
+	public static synthetic fun copy-rh-56jM$default (Ldev/inmo/tgbotapi/types/chat/ExtendedBusinessChatImpl;Lkotlin/Pair;Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChat;ILjava/lang/Object;)Ldev/inmo/tgbotapi/types/chat/ExtendedBusinessChatImpl;
+	public fun equals (Ljava/lang/Object;)Z
+	public fun getAccentColorId-f3WtEc0 ()I
+	public fun getBackgroundCustomEmojiId-GbmMWyQ ()Ljava/lang/String;
+	public fun getChatPhoto ()Ldev/inmo/tgbotapi/types/ChatPhoto;
+	public synthetic fun getId ()Ldev/inmo/tgbotapi/types/IdChatIdentifier;
+	public fun getId-y8AA8dk ()Lkotlin/Pair;
+	public fun getOriginal ()Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChat;
+	public synthetic fun getOriginal ()Ldev/inmo/tgbotapi/types/chat/PrivateChat;
+	public fun getProfileAccentColorId-mg_h9nU ()Ldev/inmo/tgbotapi/types/colors/ColorId;
+	public fun getProfileBackgroundCustomEmojiId-GbmMWyQ ()Ljava/lang/String;
+	public fun hashCode ()I
+	public fun toString ()Ljava/lang/String;
+}
+
+public final class dev/inmo/tgbotapi/types/chat/ExtendedBusinessChatImpl$$serializer : kotlinx/serialization/internal/GeneratedSerializer {
+	public static final field INSTANCE Ldev/inmo/tgbotapi/types/chat/ExtendedBusinessChatImpl$$serializer;
+	public fun childSerializers ()[Lkotlinx/serialization/KSerializer;
+	public fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Ldev/inmo/tgbotapi/types/chat/ExtendedBusinessChatImpl;
+	public synthetic fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Ljava/lang/Object;
+	public fun getDescriptor ()Lkotlinx/serialization/descriptors/SerialDescriptor;
+	public fun serialize (Lkotlinx/serialization/encoding/Encoder;Ldev/inmo/tgbotapi/types/chat/ExtendedBusinessChatImpl;)V
+	public synthetic fun serialize (Lkotlinx/serialization/encoding/Encoder;Ljava/lang/Object;)V
+	public fun typeParametersSerializers ()[Lkotlinx/serialization/KSerializer;
+}
+
+public final class dev/inmo/tgbotapi/types/chat/ExtendedBusinessChatImpl$Companion {
+	public final fun serializer ()Lkotlinx/serialization/KSerializer;
+}
+
 public abstract interface class dev/inmo/tgbotapi/types/chat/ExtendedChannelChat : dev/inmo/tgbotapi/types/chat/ChannelChat, dev/inmo/tgbotapi/types/chat/ExtendedChatWithUsername, dev/inmo/tgbotapi/types/chat/ExtendedPublicChat {
 	public static final field Companion Ldev/inmo/tgbotapi/types/chat/ExtendedChannelChat$Companion;
 	public abstract fun getLinkedGroupChatId ()Ldev/inmo/tgbotapi/types/IdChatIdentifier;
@@ -13585,6 +13709,12 @@ public abstract class dev/inmo/tgbotapi/types/chat/ExtendedChatSerializer : kotl
 	public synthetic fun serialize (Lkotlinx/serialization/encoding/Encoder;Ljava/lang/Object;)V
 }
 
+public final class dev/inmo/tgbotapi/types/chat/ExtendedChatSerializer$BasedOnBusinessConnection : dev/inmo/tgbotapi/types/chat/ExtendedChatSerializer {
+	public synthetic fun <init> (Ljava/lang/String;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Ldev/inmo/tgbotapi/types/chat/ExtendedChat;
+	public synthetic fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Ljava/lang/Object;
+}
+
 public final class dev/inmo/tgbotapi/types/chat/ExtendedChatSerializer$BasedOnForumThread : dev/inmo/tgbotapi/types/chat/ExtendedChatSerializer {
 	public synthetic fun <init> (JLkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Ldev/inmo/tgbotapi/types/chat/ExtendedChat;
@@ -13775,6 +13905,9 @@ public abstract interface class dev/inmo/tgbotapi/types/chat/ExtendedPrivateChat
 	public static final field Companion Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChat$Companion;
 	public abstract fun getAllowCreateUserIdLink ()Z
 	public abstract fun getBio ()Ljava/lang/String;
+	public abstract fun getBusinessIntro ()Ldev/inmo/tgbotapi/types/business_connection/BusinessIntro;
+	public abstract fun getBusinessLocation ()Ldev/inmo/tgbotapi/types/business_connection/BusinessLocation;
+	public abstract fun getBusinessOpeningHours ()Ldev/inmo/tgbotapi/types/business_connection/BusinessOpeningHours;
 	public abstract fun getHasPrivateForwards ()Z
 	public abstract fun getHasRestrictedVoiceAndVideoMessages ()Z
 }
@@ -13789,8 +13922,8 @@ public final class dev/inmo/tgbotapi/types/chat/ExtendedPrivateChat$DefaultImpls
 
 public final class dev/inmo/tgbotapi/types/chat/ExtendedPrivateChatImpl : dev/inmo/tgbotapi/types/chat/ExtendedPrivateChat {
 	public static final field Companion Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChatImpl$Companion;
-	public synthetic fun <init> (JLdev/inmo/tgbotapi/types/ChatPhoto;Ljava/lang/String;Ljava/util/List;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ZZLjava/lang/String;Ldev/inmo/tgbotapi/types/TelegramDate;ILdev/inmo/tgbotapi/types/colors/ColorId;Ljava/lang/String;Ljava/lang/String;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
-	public synthetic fun <init> (JLdev/inmo/tgbotapi/types/ChatPhoto;Ljava/lang/String;Ljava/util/List;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ZZLjava/lang/String;Ldev/inmo/tgbotapi/types/TelegramDate;ILdev/inmo/tgbotapi/types/colors/ColorId;Ljava/lang/String;Ljava/lang/String;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public synthetic fun <init> (JLdev/inmo/tgbotapi/types/ChatPhoto;Ljava/lang/String;Ljava/util/List;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ZZLjava/lang/String;Ldev/inmo/tgbotapi/types/TelegramDate;ILdev/inmo/tgbotapi/types/colors/ColorId;Ljava/lang/String;Ljava/lang/String;Ldev/inmo/tgbotapi/types/business_connection/BusinessIntro;Ldev/inmo/tgbotapi/types/business_connection/BusinessLocation;Ldev/inmo/tgbotapi/types/business_connection/BusinessOpeningHours;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public synthetic fun <init> (JLdev/inmo/tgbotapi/types/ChatPhoto;Ljava/lang/String;Ljava/util/List;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ZZLjava/lang/String;Ldev/inmo/tgbotapi/types/TelegramDate;ILdev/inmo/tgbotapi/types/colors/ColorId;Ljava/lang/String;Ljava/lang/String;Ldev/inmo/tgbotapi/types/business_connection/BusinessIntro;Ldev/inmo/tgbotapi/types/business_connection/BusinessLocation;Ldev/inmo/tgbotapi/types/business_connection/BusinessOpeningHours;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public final fun component1-tHkBKVM ()J
 	public final fun component10-GbmMWyQ ()Ljava/lang/String;
 	public final fun component11 ()Ldev/inmo/tgbotapi/types/TelegramDate;
@@ -13798,6 +13931,9 @@ public final class dev/inmo/tgbotapi/types/chat/ExtendedPrivateChatImpl : dev/in
 	public final fun component13-mg_h9nU ()Ldev/inmo/tgbotapi/types/colors/ColorId;
 	public final fun component14-GbmMWyQ ()Ljava/lang/String;
 	public final fun component15-GbmMWyQ ()Ljava/lang/String;
+	public final fun component16 ()Ldev/inmo/tgbotapi/types/business_connection/BusinessIntro;
+	public final fun component17 ()Ldev/inmo/tgbotapi/types/business_connection/BusinessLocation;
+	public final fun component18 ()Ldev/inmo/tgbotapi/types/business_connection/BusinessOpeningHours;
 	public final fun component2 ()Ldev/inmo/tgbotapi/types/ChatPhoto;
 	public final fun component3-san03mo ()Ljava/lang/String;
 	public final fun component4 ()Ljava/util/List;
@@ -13806,14 +13942,17 @@ public final class dev/inmo/tgbotapi/types/chat/ExtendedPrivateChatImpl : dev/in
 	public final fun component7 ()Ljava/lang/String;
 	public final fun component8 ()Z
 	public final fun component9 ()Z
-	public final fun copy-e_ALIDo (JLdev/inmo/tgbotapi/types/ChatPhoto;Ljava/lang/String;Ljava/util/List;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ZZLjava/lang/String;Ldev/inmo/tgbotapi/types/TelegramDate;ILdev/inmo/tgbotapi/types/colors/ColorId;Ljava/lang/String;Ljava/lang/String;)Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChatImpl;
-	public static synthetic fun copy-e_ALIDo$default (Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChatImpl;JLdev/inmo/tgbotapi/types/ChatPhoto;Ljava/lang/String;Ljava/util/List;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ZZLjava/lang/String;Ldev/inmo/tgbotapi/types/TelegramDate;ILdev/inmo/tgbotapi/types/colors/ColorId;Ljava/lang/String;Ljava/lang/String;ILjava/lang/Object;)Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChatImpl;
+	public final fun copy-4P93q3c (JLdev/inmo/tgbotapi/types/ChatPhoto;Ljava/lang/String;Ljava/util/List;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ZZLjava/lang/String;Ldev/inmo/tgbotapi/types/TelegramDate;ILdev/inmo/tgbotapi/types/colors/ColorId;Ljava/lang/String;Ljava/lang/String;Ldev/inmo/tgbotapi/types/business_connection/BusinessIntro;Ldev/inmo/tgbotapi/types/business_connection/BusinessLocation;Ldev/inmo/tgbotapi/types/business_connection/BusinessOpeningHours;)Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChatImpl;
+	public static synthetic fun copy-4P93q3c$default (Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChatImpl;JLdev/inmo/tgbotapi/types/ChatPhoto;Ljava/lang/String;Ljava/util/List;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ZZLjava/lang/String;Ldev/inmo/tgbotapi/types/TelegramDate;ILdev/inmo/tgbotapi/types/colors/ColorId;Ljava/lang/String;Ljava/lang/String;Ldev/inmo/tgbotapi/types/business_connection/BusinessIntro;Ldev/inmo/tgbotapi/types/business_connection/BusinessLocation;Ldev/inmo/tgbotapi/types/business_connection/BusinessOpeningHours;ILjava/lang/Object;)Ldev/inmo/tgbotapi/types/chat/ExtendedPrivateChatImpl;
 	public fun equals (Ljava/lang/Object;)Z
 	public fun getAccentColorId-f3WtEc0 ()I
 	public fun getActiveUsernames ()Ljava/util/List;
 	public fun getAllowCreateUserIdLink ()Z
 	public fun getBackgroundCustomEmojiId-GbmMWyQ ()Ljava/lang/String;
 	public fun getBio ()Ljava/lang/String;
+	public fun getBusinessIntro ()Ldev/inmo/tgbotapi/types/business_connection/BusinessIntro;
+	public fun getBusinessLocation ()Ldev/inmo/tgbotapi/types/business_connection/BusinessLocation;
+	public fun getBusinessOpeningHours ()Ldev/inmo/tgbotapi/types/business_connection/BusinessOpeningHours;
 	public fun getChatPhoto ()Ldev/inmo/tgbotapi/types/ChatPhoto;
 	public fun getFirstName ()Ljava/lang/String;
 	public fun getHasPrivateForwards ()Z
@@ -14050,6 +14189,14 @@ public final class dev/inmo/tgbotapi/types/chat/PreviewBot$Companion {
 	public final fun serializer ()Lkotlinx/serialization/KSerializer;
 }
 
+public abstract interface class dev/inmo/tgbotapi/types/chat/PreviewBusinessChat : dev/inmo/tgbotapi/types/chat/BusinessChat, dev/inmo/tgbotapi/types/chat/PreviewChat {
+	public static final field Companion Ldev/inmo/tgbotapi/types/chat/PreviewBusinessChat$Companion;
+}
+
+public final class dev/inmo/tgbotapi/types/chat/PreviewBusinessChat$Companion {
+	public final fun serializer ()Lkotlinx/serialization/KSerializer;
+}
+
 public abstract interface class dev/inmo/tgbotapi/types/chat/PreviewChannelChat : dev/inmo/tgbotapi/types/chat/ChannelChat, dev/inmo/tgbotapi/types/chat/PreviewSuperPublicChat {
 	public static final field Companion Ldev/inmo/tgbotapi/types/chat/PreviewChannelChat$Companion;
 }
@@ -17132,13 +17279,16 @@ public final class dev/inmo/tgbotapi/types/message/AnonymousGroupContentMessageI
 }
 
 public final class dev/inmo/tgbotapi/types/message/BusinessContentMessageImpl : dev/inmo/tgbotapi/types/message/abstracts/BusinessContentMessage {
-	public synthetic fun <init> (JLdev/inmo/tgbotapi/types/chat/User;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;Ljava/lang/String;Ldev/inmo/tgbotapi/types/message/content/MessageContent;DLkorlibs/time/DateTime;ZLdev/inmo/tgbotapi/types/message/ForwardInfo;Ldev/inmo/tgbotapi/types/message/abstracts/AccessibleMessage;Ldev/inmo/tgbotapi/types/buttons/InlineKeyboardMarkup;Ldev/inmo/tgbotapi/types/chat/CommonBot;Ljava/lang/String;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
-	public synthetic fun <init> (JLdev/inmo/tgbotapi/types/chat/User;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;Ljava/lang/String;Ldev/inmo/tgbotapi/types/message/content/MessageContent;DLkorlibs/time/DateTime;ZLdev/inmo/tgbotapi/types/message/MessageOrigin;Ldev/inmo/tgbotapi/types/ReplyInfo;Ldev/inmo/tgbotapi/types/buttons/InlineKeyboardMarkup;Ldev/inmo/tgbotapi/types/chat/CommonBot;Ljava/lang/String;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public synthetic fun <init> (JLdev/inmo/tgbotapi/types/chat/User;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;Ljava/lang/String;Ldev/inmo/tgbotapi/types/message/content/MessageContent;DLkorlibs/time/DateTime;ZLdev/inmo/tgbotapi/types/message/ForwardInfo;Ldev/inmo/tgbotapi/types/message/abstracts/AccessibleMessage;Ldev/inmo/tgbotapi/types/buttons/InlineKeyboardMarkup;Ldev/inmo/tgbotapi/types/chat/CommonBot;Ljava/lang/String;Ldev/inmo/tgbotapi/types/chat/PreviewBot;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public synthetic fun <init> (JLdev/inmo/tgbotapi/types/chat/User;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;Ljava/lang/String;Ldev/inmo/tgbotapi/types/message/content/MessageContent;DLkorlibs/time/DateTime;ZLdev/inmo/tgbotapi/types/message/ForwardInfo;Ldev/inmo/tgbotapi/types/message/abstracts/AccessibleMessage;Ldev/inmo/tgbotapi/types/buttons/InlineKeyboardMarkup;Ldev/inmo/tgbotapi/types/chat/CommonBot;Ljava/lang/String;Ldev/inmo/tgbotapi/types/chat/PreviewBot;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public synthetic fun <init> (JLdev/inmo/tgbotapi/types/chat/User;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;Ljava/lang/String;Ldev/inmo/tgbotapi/types/message/content/MessageContent;DLkorlibs/time/DateTime;ZLdev/inmo/tgbotapi/types/message/MessageOrigin;Ldev/inmo/tgbotapi/types/ReplyInfo;Ldev/inmo/tgbotapi/types/buttons/InlineKeyboardMarkup;Ldev/inmo/tgbotapi/types/chat/CommonBot;Ljava/lang/String;Ldev/inmo/tgbotapi/types/chat/PreviewBot;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public synthetic fun <init> (JLdev/inmo/tgbotapi/types/chat/User;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;Ljava/lang/String;Ldev/inmo/tgbotapi/types/message/content/MessageContent;DLkorlibs/time/DateTime;ZLdev/inmo/tgbotapi/types/message/MessageOrigin;Ldev/inmo/tgbotapi/types/ReplyInfo;Ldev/inmo/tgbotapi/types/buttons/InlineKeyboardMarkup;Ldev/inmo/tgbotapi/types/chat/CommonBot;Ljava/lang/String;Ldev/inmo/tgbotapi/types/chat/PreviewBot;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public final fun component1-APLFQys ()J
 	public final fun component10 ()Ldev/inmo/tgbotapi/types/ReplyInfo;
 	public final fun component11 ()Ldev/inmo/tgbotapi/types/buttons/InlineKeyboardMarkup;
 	public final fun component12 ()Ldev/inmo/tgbotapi/types/chat/CommonBot;
 	public final fun component13-CsYhHCU ()Ljava/lang/String;
+	public final fun component14 ()Ldev/inmo/tgbotapi/types/chat/PreviewBot;
 	public final fun component2 ()Ldev/inmo/tgbotapi/types/chat/User;
 	public final fun component3 ()Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;
 	public final fun component4-T-_HSQI ()Ljava/lang/String;
@@ -17147,8 +17297,8 @@ public final class dev/inmo/tgbotapi/types/message/BusinessContentMessageImpl :
 	public final fun component7-Ivn3T5g ()Lkorlibs/time/DateTime;
 	public final fun component8 ()Z
 	public final fun component9 ()Ldev/inmo/tgbotapi/types/message/MessageOrigin;
-	public final fun copy-DsA41C8 (JLdev/inmo/tgbotapi/types/chat/User;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;Ljava/lang/String;Ldev/inmo/tgbotapi/types/message/content/MessageContent;DLkorlibs/time/DateTime;ZLdev/inmo/tgbotapi/types/message/MessageOrigin;Ldev/inmo/tgbotapi/types/ReplyInfo;Ldev/inmo/tgbotapi/types/buttons/InlineKeyboardMarkup;Ldev/inmo/tgbotapi/types/chat/CommonBot;Ljava/lang/String;)Ldev/inmo/tgbotapi/types/message/BusinessContentMessageImpl;
-	public static synthetic fun copy-DsA41C8$default (Ldev/inmo/tgbotapi/types/message/BusinessContentMessageImpl;JLdev/inmo/tgbotapi/types/chat/User;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;Ljava/lang/String;Ldev/inmo/tgbotapi/types/message/content/MessageContent;DLkorlibs/time/DateTime;ZLdev/inmo/tgbotapi/types/message/MessageOrigin;Ldev/inmo/tgbotapi/types/ReplyInfo;Ldev/inmo/tgbotapi/types/buttons/InlineKeyboardMarkup;Ldev/inmo/tgbotapi/types/chat/CommonBot;Ljava/lang/String;ILjava/lang/Object;)Ldev/inmo/tgbotapi/types/message/BusinessContentMessageImpl;
+	public final fun copy-FGAwJ3U (JLdev/inmo/tgbotapi/types/chat/User;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;Ljava/lang/String;Ldev/inmo/tgbotapi/types/message/content/MessageContent;DLkorlibs/time/DateTime;ZLdev/inmo/tgbotapi/types/message/MessageOrigin;Ldev/inmo/tgbotapi/types/ReplyInfo;Ldev/inmo/tgbotapi/types/buttons/InlineKeyboardMarkup;Ldev/inmo/tgbotapi/types/chat/CommonBot;Ljava/lang/String;Ldev/inmo/tgbotapi/types/chat/PreviewBot;)Ldev/inmo/tgbotapi/types/message/BusinessContentMessageImpl;
+	public static synthetic fun copy-FGAwJ3U$default (Ldev/inmo/tgbotapi/types/message/BusinessContentMessageImpl;JLdev/inmo/tgbotapi/types/chat/User;Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;Ljava/lang/String;Ldev/inmo/tgbotapi/types/message/content/MessageContent;DLkorlibs/time/DateTime;ZLdev/inmo/tgbotapi/types/message/MessageOrigin;Ldev/inmo/tgbotapi/types/ReplyInfo;Ldev/inmo/tgbotapi/types/buttons/InlineKeyboardMarkup;Ldev/inmo/tgbotapi/types/chat/CommonBot;Ljava/lang/String;Ldev/inmo/tgbotapi/types/chat/PreviewBot;ILjava/lang/Object;)Ldev/inmo/tgbotapi/types/message/BusinessContentMessageImpl;
 	public fun equals (Ljava/lang/Object;)Z
 	public fun getBusinessConnectionId-T-_HSQI ()Ljava/lang/String;
 	public synthetic fun getBusinessConnectionId-nXr5wdE ()Ljava/lang/String;
@@ -17169,6 +17319,7 @@ public final class dev/inmo/tgbotapi/types/message/BusinessContentMessageImpl :
 	public fun getReplyMarkup ()Ldev/inmo/tgbotapi/types/buttons/InlineKeyboardMarkup;
 	public fun getReplyTo ()Ldev/inmo/tgbotapi/types/message/abstracts/Message;
 	public fun getSenderBot ()Ldev/inmo/tgbotapi/types/chat/CommonBot;
+	public fun getSenderBusinessBot ()Ldev/inmo/tgbotapi/types/chat/PreviewBot;
 	public fun getUser ()Ldev/inmo/tgbotapi/types/chat/User;
 	public fun hashCode ()I
 	public fun toString ()Ljava/lang/String;
@@ -18447,6 +18598,7 @@ public final class dev/inmo/tgbotapi/types/message/abstracts/AnonymousGroupConte
 public abstract interface class dev/inmo/tgbotapi/types/message/abstracts/BusinessContentMessage : dev/inmo/tgbotapi/abstracts/types/WithBusinessConnectionId, dev/inmo/tgbotapi/types/message/abstracts/FromUserMessage, dev/inmo/tgbotapi/types/message/abstracts/PossiblySentViaBotCommonMessage {
 	public abstract fun getBusinessConnectionId-T-_HSQI ()Ljava/lang/String;
 	public abstract fun getChat ()Ldev/inmo/tgbotapi/types/chat/PreviewPrivateChat;
+	public abstract fun getSenderBusinessBot ()Ldev/inmo/tgbotapi/types/chat/PreviewBot;
 }
 
 public final class dev/inmo/tgbotapi/types/message/abstracts/BusinessContentMessage$DefaultImpls {

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/abstracts/types/OptionallyBusinessConnectionRequest.kt

@@ -0,0 +1,7 @@
+package dev.inmo.tgbotapi.abstracts.types
+
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
+
+interface OptionallyBusinessConnectionRequest {
+    val businessConnectionId: BusinessConnectionId?
+}

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/chat/get/GetChat.kt

@@ -2,6 +2,7 @@ package dev.inmo.tgbotapi.requests.chat.get
 
 import dev.inmo.tgbotapi.abstracts.types.ChatRequest
 import dev.inmo.tgbotapi.requests.abstracts.SimpleRequest
+import dev.inmo.tgbotapi.types.BusinessChatId
 import dev.inmo.tgbotapi.types.ChatIdWithThreadId
 import dev.inmo.tgbotapi.types.ChatIdentifier
 import dev.inmo.tgbotapi.types.chat.ExtendedChatSerializer
@@ -16,10 +17,10 @@ data class GetChat(
 ): ChatRequest, SimpleRequest<ExtendedChat> {
     override fun method(): String = "getChat"
     @Transient
-    override val resultDeserializer: DeserializationStrategy<ExtendedChat> = if (chatId is ChatIdWithThreadId) {
-        ExtendedChatSerializer.BasedOnForumThread(chatId.threadId)
-    } else {
-        ExtendedChatSerializer.Companion
+    override val resultDeserializer: DeserializationStrategy<ExtendedChat> = when {
+        chatId is ChatIdWithThreadId -> ExtendedChatSerializer.BasedOnForumThread(chatId.threadId)
+        chatId is BusinessChatId -> ExtendedChatSerializer.BasedOnBusinessConnection(chatId.businessId)
+        else -> ExtendedChatSerializer.Companion
     }
     override val requestSerializer: SerializationStrategy<*>
         get() = serializer()

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/CopyMessage.kt

@@ -7,6 +7,7 @@ import dev.inmo.tgbotapi.requests.abstracts.SimpleRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.OptionallyMessageThreadRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.ReplyingMarkupSendMessageRequest
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.message.textsources.TextSource
 import dev.inmo.tgbotapi.types.message.ParseMode
 import dev.inmo.tgbotapi.types.message.parseModeField
@@ -28,6 +29,7 @@ fun CopyMessage(
     text: String? = null,
     parseMode: ParseMode? = null,
     threadId: MessageThreadId? = toChatId.threadId,
+    businessConnectionId: BusinessConnectionId? = toChatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -40,6 +42,7 @@ fun CopyMessage(
     parseMode,
     null,
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,
@@ -52,6 +55,7 @@ fun CopyMessage(
     messageId: MessageId,
     entities: List<TextSource>,
     threadId: MessageThreadId? = toChatId.threadId,
+    businessConnectionId: BusinessConnectionId? = toChatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -64,6 +68,7 @@ fun CopyMessage(
     null,
     entities.toRawMessageEntities(),
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,
@@ -77,6 +82,7 @@ fun CopyMessage(
     text: String? = null,
     parseMode: ParseMode? = null,
     threadId: MessageThreadId? = toChatId.threadId,
+    businessConnectionId: BusinessConnectionId? = toChatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -89,6 +95,7 @@ fun CopyMessage(
     parseMode,
     null,
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,
@@ -101,6 +108,7 @@ fun CopyMessage(
     toChatId: ChatIdentifier,
     entities: List<TextSource>,
     threadId: MessageThreadId? = toChatId.threadId,
+    businessConnectionId: BusinessConnectionId? = toChatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -113,6 +121,7 @@ fun CopyMessage(
     null,
     entities.toRawMessageEntities(),
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,
@@ -135,6 +144,8 @@ data class CopyMessage internal constructor(
     private val rawEntities: List<RawMessageEntity>? = null,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = toChatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = toChatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/CopyMessages.kt

@@ -2,10 +2,12 @@ package dev.inmo.tgbotapi.requests.send
 
 import dev.inmo.tgbotapi.abstracts.types.DisableNotification
 import dev.inmo.tgbotapi.abstracts.types.MessagesAction
+import dev.inmo.tgbotapi.abstracts.types.OptionallyBusinessConnectionRequest
 import dev.inmo.tgbotapi.abstracts.types.ProtectContent
 import dev.inmo.tgbotapi.requests.abstracts.SimpleRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.OptionallyMessageThreadRequest
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.message.textsources.TextSource
 import dev.inmo.tgbotapi.types.message.ParseMode
 import dev.inmo.tgbotapi.types.buttons.KeyboardMarkup
@@ -20,6 +22,7 @@ fun CopyMessages(
     fromChatId: ChatIdentifier,
     messageIds: Array<MessageId>,
     threadId: MessageThreadId? = toChatId.threadId,
+    businessConnectionId: BusinessConnectionId? = toChatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     removeCaption: Boolean = false
@@ -43,6 +46,8 @@ data class CopyMessages (
     override val messageIds: List<MessageId>,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = toChatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = toChatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)
@@ -53,6 +58,7 @@ data class CopyMessages (
     MessagesAction,
     ProtectContent,
     OptionallyMessageThreadRequest,
+    OptionallyBusinessConnectionRequest,
     DisableNotification {
     override val chatId: ChatIdentifier
         get() = fromChatId

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/SendAction.kt

@@ -1,9 +1,11 @@
 package dev.inmo.tgbotapi.requests.send
 
+import dev.inmo.tgbotapi.abstracts.types.OptionallyBusinessConnectionRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.OptionallyMessageThreadRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.SendChatMessageRequest
 import dev.inmo.tgbotapi.types.*
 import dev.inmo.tgbotapi.types.actions.BotAction
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import kotlinx.serialization.*
 import kotlinx.serialization.builtins.serializer
 
@@ -17,8 +19,10 @@ data class SendAction(
     @SerialName(actionField)
     val action: BotAction,
     @SerialName(messageThreadIdField)
-    override val threadId: MessageThreadId? = chatId.threadId
-): SendChatMessageRequest<Boolean>, OptionallyMessageThreadRequest {
+    override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId
+): SendChatMessageRequest<Boolean>, OptionallyMessageThreadRequest, OptionallyBusinessConnectionRequest {
     override fun method(): String = "sendChatAction"
     override val resultDeserializer: DeserializationStrategy<Boolean>
         get() = Boolean.serializer()

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/SendContact.kt

@@ -3,6 +3,7 @@ package dev.inmo.tgbotapi.requests.send
 import dev.inmo.tgbotapi.requests.send.abstracts.ReplyingMarkupSendMessageRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.SendMessageRequest
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.buttons.KeyboardMarkup
 import dev.inmo.tgbotapi.types.message.abstracts.ContentMessage
 import dev.inmo.tgbotapi.types.message.abstracts.TelegramBotAPIMessageDeserializationStrategyClass
@@ -24,6 +25,8 @@ data class SendContact(
     val lastName: String? = null,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)
@@ -39,6 +42,7 @@ data class SendContact(
         chatId: ChatIdentifier,
         contact: Contact,
         threadId: MessageThreadId? = chatId.threadId,
+        businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
         disableNotification: Boolean = false,
         protectContent: Boolean = false,
         replyParameters: ReplyParameters? = null,
@@ -49,6 +53,7 @@ data class SendContact(
         contact.firstName,
         contact.lastName,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -65,6 +70,7 @@ data class SendContact(
 fun Contact.toRequest(
     chatId: ChatIdentifier,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -73,6 +79,7 @@ fun Contact.toRequest(
     chatId,
     this,
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/SendDice.kt

@@ -4,6 +4,7 @@ import dev.inmo.tgbotapi.abstracts.types.DisableNotification
 import dev.inmo.tgbotapi.abstracts.types.WithReplyParameters
 import dev.inmo.tgbotapi.requests.send.abstracts.ReplyingMarkupSendMessageRequest
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.buttons.KeyboardMarkup
 import dev.inmo.tgbotapi.types.dice.DiceAnimationType
 import dev.inmo.tgbotapi.types.message.abstracts.ContentMessage
@@ -21,7 +22,9 @@ data class SendDice(
     @SerialName(emojiField)
     val animationType: DiceAnimationType? = null,
     @SerialName(messageThreadIdField)
-    override val threadId: MessageThreadId?,
+    override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/SendLocation.kt

@@ -3,6 +3,7 @@ package dev.inmo.tgbotapi.requests.send
 import dev.inmo.tgbotapi.abstracts.*
 import dev.inmo.tgbotapi.requests.send.abstracts.*
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.buttons.KeyboardMarkup
 import dev.inmo.tgbotapi.types.message.abstracts.ContentMessage
 import dev.inmo.tgbotapi.types.message.abstracts.TelegramBotAPIMessageDeserializationStrategyClass
@@ -19,6 +20,7 @@ fun SendLocation(
     latitude: Double,
     longitude: Double,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -32,6 +34,7 @@ fun SendLocation(
     null,
     null,
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,
@@ -43,11 +46,12 @@ fun SendStaticLocation(
     latitude: Double,
     longitude: Double,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
     replyMarkup: KeyboardMarkup? = null
-) = SendLocation(chatId, latitude, longitude, threadId, disableNotification, protectContent, replyParameters, replyMarkup)
+) = SendLocation(chatId, latitude, longitude, threadId, businessConnectionId, disableNotification, protectContent, replyParameters, replyMarkup)
 
 fun SendLiveLocation(
     chatId: ChatIdentifier,
@@ -58,6 +62,7 @@ fun SendLiveLocation(
     heading: Degrees? = null,
     proximityAlertRadius: Meters? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -71,6 +76,7 @@ fun SendLiveLocation(
     heading,
     proximityAlertRadius,
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,
@@ -95,6 +101,8 @@ data class SendLocation internal constructor(
     override val proximityAlertRadius: Meters? = null,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/SendMessage.kt

@@ -3,6 +3,7 @@ package dev.inmo.tgbotapi.requests.send
 import dev.inmo.tgbotapi.abstracts.types.LinkPreviewOptionsContainer
 import dev.inmo.tgbotapi.requests.send.abstracts.*
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.message.textsources.TextSourcesList
 import dev.inmo.tgbotapi.types.message.ParseMode
 import dev.inmo.tgbotapi.types.message.parseModeField
@@ -26,6 +27,7 @@ fun SendTextMessage(
     parseMode: ParseMode? = null,
     linkPreviewOptions: LinkPreviewOptions? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -36,6 +38,7 @@ fun SendTextMessage(
     parseMode,
     null,
     threadId,
+    businessConnectionId,
     linkPreviewOptions,
     disableNotification,
     protectContent,
@@ -48,6 +51,7 @@ fun SendTextMessage(
     entities: TextSourcesList,
     linkPreviewOptions: LinkPreviewOptions? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -58,6 +62,7 @@ fun SendTextMessage(
     null,
     entities.toRawMessageEntities(),
     threadId,
+    businessConnectionId,
     linkPreviewOptions,
     disableNotification,
     protectContent,
@@ -77,6 +82,8 @@ data class SendTextMessage internal constructor(
     private val rawEntities: List<RawMessageEntity>? = null,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(linkPreviewOptionsField)
     override val linkPreviewOptions: LinkPreviewOptions? = null,
     @SerialName(disableNotificationField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/SendVenue.kt

@@ -2,6 +2,7 @@ package dev.inmo.tgbotapi.requests.send
 
 import dev.inmo.tgbotapi.requests.send.abstracts.*
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.buttons.KeyboardMarkup
 import dev.inmo.tgbotapi.types.message.abstracts.ContentMessage
 import dev.inmo.tgbotapi.types.message.abstracts.TelegramBotAPIMessageDeserializationStrategyClass
@@ -34,6 +35,8 @@ data class SendVenue(
     val googlePlaceType: GooglePlaceType? = null,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)
@@ -51,6 +54,7 @@ data class SendVenue(
         chatId: ChatIdentifier,
         venue: Venue,
         threadId: MessageThreadId? = chatId.threadId,
+        businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
         disableNotification: Boolean = false,
         protectContent: Boolean = false,
         replyParameters: ReplyParameters? = null,
@@ -82,6 +86,7 @@ data class SendVenue(
 fun Venue.toRequest(
     chatId: ChatIdentifier,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -90,6 +95,7 @@ fun Venue.toRequest(
     chatId,
     this,
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/abstracts/SendMessageRequest.kt

@@ -6,4 +6,5 @@ interface SendMessageRequest<T: Any> : SendChatMessageRequest<T>,
     WithReplyParameters,
     DisableNotification,
     ProtectContent,
-    OptionallyMessageThreadRequest
+    OptionallyMessageThreadRequest,
+    OptionallyBusinessConnectionRequest

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/games/SendGame.kt

@@ -3,6 +3,7 @@ package dev.inmo.tgbotapi.requests.send.games
 import dev.inmo.tgbotapi.abstracts.types.WithReplyMarkup
 import dev.inmo.tgbotapi.requests.send.abstracts.SendMessageRequest
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.buttons.KeyboardMarkup
 import dev.inmo.tgbotapi.types.message.abstracts.ContentMessage
 import dev.inmo.tgbotapi.types.message.abstracts.TelegramBotAPIMessageDeserializationStrategyClass
@@ -20,6 +21,8 @@ data class SendGame (
     val gameShortName: String,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendAnimation.kt

@@ -5,6 +5,7 @@ import dev.inmo.tgbotapi.requests.common.CommonMultipartFileRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.*
 import dev.inmo.tgbotapi.requests.send.media.base.*
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.message.textsources.TextSourcesList
 import dev.inmo.tgbotapi.types.message.ParseMode
 import dev.inmo.tgbotapi.types.message.parseModeField
@@ -31,6 +32,7 @@ fun SendAnimation(
     width: Int? = null,
     height: Int? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -51,6 +53,7 @@ fun SendAnimation(
         width,
         height,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -77,6 +80,7 @@ fun SendAnimation(
     width: Int? = null,
     height: Int? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -97,6 +101,7 @@ fun SendAnimation(
         width,
         height,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -140,6 +145,8 @@ data class SendAnimationData internal constructor(
     override val height: Int? = null,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendAudio.kt

@@ -6,6 +6,7 @@ import dev.inmo.tgbotapi.requests.common.CommonMultipartFileRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.*
 import dev.inmo.tgbotapi.requests.send.media.base.*
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.message.textsources.TextSource
 import dev.inmo.tgbotapi.types.message.ParseMode
 import dev.inmo.tgbotapi.types.message.parseModeField
@@ -31,6 +32,7 @@ fun SendAudio(
     performer: String? = null,
     title: String? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -50,6 +52,7 @@ fun SendAudio(
         performer,
         title,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -75,6 +78,7 @@ fun SendAudio(
     performer: String? = null,
     title: String? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -94,6 +98,7 @@ fun SendAudio(
         performer,
         title,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -135,6 +140,8 @@ data class SendAudioData internal constructor(
     override val title: String? = null,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendDocument.kt

@@ -5,6 +5,7 @@ import dev.inmo.tgbotapi.requests.common.CommonMultipartFileRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.*
 import dev.inmo.tgbotapi.requests.send.media.base.*
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.message.textsources.TextSourcesList
 import dev.inmo.tgbotapi.types.message.ParseMode
 import dev.inmo.tgbotapi.types.message.parseModeField
@@ -36,6 +37,7 @@ fun SendDocument(
     text: String? = null,
     parseMode: ParseMode? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -53,6 +55,7 @@ fun SendDocument(
         parseMode,
         null,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -85,6 +88,7 @@ fun SendDocument(
     thumbnail: InputFile? = null,
     entities: TextSourcesList,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -102,6 +106,7 @@ fun SendDocument(
         null,
         entities.toRawMessageEntities(),
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -147,6 +152,8 @@ data class SendDocumentData internal constructor(
     private val rawEntities: List<RawMessageEntity>? = null,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendMediaGroup.kt

@@ -6,6 +6,7 @@ import dev.inmo.tgbotapi.requests.common.CommonMultipartFileRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.SendMessageRequest
 import dev.inmo.tgbotapi.requests.send.media.base.*
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.media.*
 import dev.inmo.tgbotapi.types.message.abstracts.ContentMessage
 import dev.inmo.tgbotapi.types.message.abstracts.PossiblySentViaBotCommonMessage
@@ -32,6 +33,7 @@ fun <T : MediaGroupPartContent> SendMediaGroup(
     chatId: ChatIdentifier,
     media: List<MediaGroupMemberTelegramMedia>,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -56,6 +58,7 @@ fun <T : MediaGroupPartContent> SendMediaGroup(
         chatId,
         media,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters
@@ -81,11 +84,12 @@ inline fun SendPlaylist(
     chatId: ChatIdentifier,
     media: List<AudioMediaGroupMemberTelegramMedia>,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
     allowSendingWithoutReply: Boolean? = null
-) = SendMediaGroup<AudioContent>(chatId, media, threadId, disableNotification, protectContent, replyParameters, allowSendingWithoutReply)
+) = SendMediaGroup<AudioContent>(chatId, media, threadId, businessConnectionId, disableNotification, protectContent, replyParameters, allowSendingWithoutReply)
 
 /**
  * Use this method to be sure that you are correctly sending documents media group
@@ -97,11 +101,12 @@ inline fun SendDocumentsGroup(
     chatId: ChatIdentifier,
     media: List<DocumentMediaGroupMemberTelegramMedia>,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
     allowSendingWithoutReply: Boolean? = null
-) = SendMediaGroup<DocumentContent>(chatId, media, threadId, disableNotification, protectContent, replyParameters, allowSendingWithoutReply)
+) = SendMediaGroup<DocumentContent>(chatId, media, threadId, businessConnectionId, disableNotification, protectContent, replyParameters, allowSendingWithoutReply)
 
 /**
  * Use this method to be sure that you are correctly sending visual media group
@@ -114,11 +119,12 @@ inline fun SendVisualMediaGroup(
     chatId: ChatIdentifier,
     media: List<VisualMediaGroupMemberTelegramMedia>,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
     allowSendingWithoutReply: Boolean? = null
-) = SendMediaGroup<VisualMediaGroupPartContent>(chatId, media, threadId, disableNotification, protectContent, replyParameters, allowSendingWithoutReply)
+) = SendMediaGroup<VisualMediaGroupPartContent>(chatId, media, threadId, businessConnectionId, disableNotification, protectContent, replyParameters, allowSendingWithoutReply)
 
 private object MessagesListSerializer: KSerializer<PossiblySentViaBotCommonMessage<MediaGroupContent<MediaGroupPartContent>>> {
     private val serializer = ListSerializer(TelegramBotAPIMessageDeserializeOnlySerializerClass<PossiblySentViaBotCommonMessage<MediaGroupPartContent>>())
@@ -142,6 +148,8 @@ data class SendMediaGroupData internal constructor(
     val media: List<MediaGroupMemberTelegramMedia> = emptyList(),
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendPhoto.kt

@@ -5,6 +5,7 @@ import dev.inmo.tgbotapi.requests.common.CommonMultipartFileRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.*
 import dev.inmo.tgbotapi.requests.send.media.base.*
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.message.textsources.TextSourcesList
 import dev.inmo.tgbotapi.types.message.ParseMode
 import dev.inmo.tgbotapi.types.message.parseModeField
@@ -26,6 +27,7 @@ fun SendPhoto(
     parseMode: ParseMode? = null,
     spoilered: Boolean = false,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -39,6 +41,7 @@ fun SendPhoto(
         null,
         spoilered,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -60,6 +63,7 @@ fun SendPhoto(
     entities: TextSourcesList,
     spoilered: Boolean = false,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -73,6 +77,7 @@ fun SendPhoto(
         entities.toRawMessageEntities(),
         spoilered,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -108,6 +113,8 @@ data class SendPhotoData internal constructor(
     override val spoilered: Boolean = false,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendSticker.kt

@@ -5,6 +5,7 @@ import dev.inmo.tgbotapi.requests.common.CommonMultipartFileRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.ReplyingMarkupSendMessageRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.SendMessageRequest
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.buttons.KeyboardMarkup
 import dev.inmo.tgbotapi.types.message.abstracts.ContentMessage
 import dev.inmo.tgbotapi.types.message.abstracts.TelegramBotAPIMessageDeserializationStrategyClass
@@ -15,6 +16,7 @@ fun SendSticker(
     chatId: ChatIdentifier,
     sticker: InputFile,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     emoji: String? = null,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
@@ -24,6 +26,7 @@ fun SendSticker(
     chatId,
     sticker,
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,
@@ -49,6 +52,8 @@ data class SendStickerByFileId internal constructor(
     val sticker: InputFile,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendVideo.kt

@@ -5,6 +5,7 @@ import dev.inmo.tgbotapi.requests.common.CommonMultipartFileRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.*
 import dev.inmo.tgbotapi.requests.send.media.base.*
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.message.textsources.TextSourcesList
 import dev.inmo.tgbotapi.types.message.ParseMode
 import dev.inmo.tgbotapi.types.message.parseModeField
@@ -32,6 +33,7 @@ fun SendVideo(
     height: Int? = null,
     supportStreaming: Boolean? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -53,6 +55,7 @@ fun SendVideo(
         height,
         supportStreaming,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -80,6 +83,7 @@ fun SendVideo(
     height: Int? = null,
     supportStreaming: Boolean? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -101,6 +105,7 @@ fun SendVideo(
         height,
         supportStreaming,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -146,6 +151,8 @@ data class SendVideoData internal constructor(
     val supportStreaming: Boolean? = null,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendVideoNote.kt

@@ -5,6 +5,7 @@ import dev.inmo.tgbotapi.requests.common.CommonMultipartFileRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.*
 import dev.inmo.tgbotapi.requests.send.media.base.*
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.buttons.KeyboardMarkup
 import dev.inmo.tgbotapi.types.message.abstracts.ContentMessage
 import dev.inmo.tgbotapi.types.message.abstracts.TelegramBotAPIMessageDeserializationStrategyClass
@@ -19,6 +20,7 @@ fun SendVideoNote(
     duration: Long? = null,
     size: Int? = null, // in documentation - length (size of video side)
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -34,6 +36,7 @@ fun SendVideoNote(
         duration,
         size,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -67,6 +70,8 @@ data class SendVideoNoteData internal constructor(
     override val width: Int? = null,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/media/SendVoice.kt

@@ -5,6 +5,7 @@ import dev.inmo.tgbotapi.requests.common.CommonMultipartFileRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.*
 import dev.inmo.tgbotapi.requests.send.media.base.*
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.message.textsources.TextSourcesList
 import dev.inmo.tgbotapi.types.message.ParseMode
 import dev.inmo.tgbotapi.types.message.parseModeField
@@ -27,6 +28,7 @@ fun SendVoice(
     parseMode: ParseMode? = null,
     duration: Long? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -42,6 +44,7 @@ fun SendVoice(
         null,
         duration,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -63,6 +66,7 @@ fun SendVoice(
     voice: InputFile,
     entities: TextSourcesList,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     duration: Long? = null,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
@@ -79,6 +83,7 @@ fun SendVoice(
         entities.toRawMessageEntities(),
         duration,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -114,6 +119,8 @@ data class SendVoiceData internal constructor(
     override val duration: Long? = null,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/payments/SendInvoice.kt

@@ -4,6 +4,7 @@ import dev.inmo.tgbotapi.abstracts.CommonSendInvoiceData
 import dev.inmo.tgbotapi.abstracts.types.*
 import dev.inmo.tgbotapi.requests.send.abstracts.SendMessageRequest
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.buttons.InlineKeyboardMarkup
 import dev.inmo.tgbotapi.types.message.abstracts.ContentMessage
 import dev.inmo.tgbotapi.types.message.abstracts.TelegramBotAPIMessageDeserializationStrategyClass
@@ -60,6 +61,8 @@ data class SendInvoice(
     override val priceDependOnShipAddress: Boolean = false,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/send/polls/SendPoll.kt

@@ -5,6 +5,7 @@ import dev.inmo.tgbotapi.abstracts.TextedOutput
 import dev.inmo.tgbotapi.requests.send.abstracts.ReplyingMarkupSendMessageRequest
 import dev.inmo.tgbotapi.requests.send.abstracts.SendMessageRequest
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.message.textsources.TextSource
 import dev.inmo.tgbotapi.types.message.ParseMode
 import dev.inmo.tgbotapi.types.buttons.KeyboardMarkup
@@ -51,6 +52,7 @@ fun SendPoll(
     isAnonymous: Boolean = true,
     isClosed: Boolean = false,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -75,6 +77,7 @@ fun SendPoll(
 fun Poll.createRequest(
     chatId: ChatIdentifier,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -89,6 +92,7 @@ fun Poll.createRequest(
         allowMultipleAnswers,
         scheduledCloseInfo,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -119,6 +123,7 @@ fun Poll.createRequest(
         false,
         scheduledCloseInfo,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -133,6 +138,7 @@ fun Poll.createRequest(
         false,
         scheduledCloseInfo,
         threadId,
+        businessConnectionId,
         disableNotification,
         protectContent,
         replyParameters,
@@ -198,6 +204,8 @@ data class SendRegularPoll(
     override val closeDate: LongSeconds?,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)
@@ -226,6 +234,7 @@ fun SendRegularPoll(
     allowMultipleAnswers: Boolean = false,
     closeInfo: ScheduledCloseInfo? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -240,6 +249,7 @@ fun SendRegularPoll(
     (closeInfo as? ApproximateScheduledCloseInfo) ?.openPeriod,
     (closeInfo as? ExactScheduledCloseInfo) ?.closeDate,
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,
@@ -257,6 +267,7 @@ fun SendQuizPoll(
     parseMode: ParseMode? = null,
     closeInfo: ScheduledCloseInfo? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -273,6 +284,7 @@ fun SendQuizPoll(
     null,
     closeInfo,
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,
@@ -289,6 +301,7 @@ fun SendQuizPoll(
     entities: List<TextSource>,
     closeInfo: ScheduledCloseInfo? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -305,6 +318,7 @@ fun SendQuizPoll(
     entities.toRawMessageEntities(),
     closeInfo,
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,
@@ -323,6 +337,7 @@ internal fun SendQuizPoll(
     rawEntities: List<RawMessageEntity>? = null,
     closeInfo: ScheduledCloseInfo? = null,
     threadId: MessageThreadId? = chatId.threadId,
+    businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     disableNotification: Boolean = false,
     protectContent: Boolean = false,
     replyParameters: ReplyParameters? = null,
@@ -340,6 +355,7 @@ internal fun SendQuizPoll(
     (closeInfo as? ApproximateScheduledCloseInfo) ?.openPeriod,
     (closeInfo as? ExactScheduledCloseInfo) ?.closeDate,
     threadId,
+    businessConnectionId,
     disableNotification,
     protectContent,
     replyParameters,
@@ -372,6 +388,8 @@ data class SendQuizPoll internal constructor(
     override val closeDate: LongSeconds? = null,
     @SerialName(messageThreadIdField)
     override val threadId: MessageThreadId? = chatId.threadId,
+    @SerialName(businessConnectionIdField)
+    override val businessConnectionId: BusinessConnectionId? = chatId.businessConnectionId,
     @SerialName(disableNotificationField)
     override val disableNotification: Boolean = false,
     @SerialName(protectContentField)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/ChatIdentifier.kt

@@ -1,6 +1,7 @@
 package dev.inmo.tgbotapi.types
 
 import dev.inmo.micro_utils.common.Warning
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.chat.User
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.ClassCastsIncluded
@@ -29,12 +30,17 @@ sealed interface IdChatIdentifier : ChatIdentifier {
     abstract val chatId: RawChatId
     val threadId: MessageThreadId?
         get() = null
+    val businessId: BusinessConnectionId?
+        get() = null
 
     companion object {
-        operator fun invoke(chatId: RawChatId) = ChatId(chatId)
-        operator fun invoke(chatId: RawChatId, threadId: MessageThreadId?) = threadId ?.let {
+        operator fun invoke(chatId: RawChatId, threadId: MessageThreadId? = null, businessConnectionId: BusinessConnectionId? = null) = threadId ?.let {
             ChatIdWithThreadId(chatId, threadId)
+        } ?: businessConnectionId ?.let {
+            BusinessChatId(chatId, businessConnectionId)
         } ?: ChatId(chatId)
+        operator fun invoke(chatId: RawChatId, threadId: MessageThreadId) = ChatIdWithThreadId(chatId, threadId)
+        operator fun invoke(chatId: RawChatId, businessConnectionId: BusinessConnectionId) = BusinessChatId(chatId, businessConnectionId)
     }
 }
 
@@ -52,16 +58,31 @@ value class ChatIdWithThreadId(val chatIdWithThreadId: Pair<RawChatId, MessageTh
 
     constructor(chatId: RawChatId, threadId: MessageThreadId): this(chatId to threadId)
 }
+@Serializable(ChatIdentifierSerializer::class)
+@JvmInline
+value class BusinessChatId(val chatIdWithBusinessConnectionId: Pair<RawChatId, BusinessConnectionId>) : IdChatIdentifier {
+    override val chatId: RawChatId
+        get() = chatIdWithBusinessConnectionId.first
+    override val businessId: BusinessConnectionId
+        get() = chatIdWithBusinessConnectionId.second
+
+    constructor(chatId: RawChatId, businessConnectionId: BusinessConnectionId): this(chatId to businessConnectionId)
+}
 
 val ChatIdentifier.threadId: MessageThreadId?
     get() = (this as? IdChatIdentifier) ?.threadId
 
+val ChatIdentifier.businessConnectionId: BusinessConnectionId?
+    get() = (this as? IdChatIdentifier) ?.businessConnectionId
+
 fun IdChatIdentifier.toChatId() = when (this) {
     is ChatId -> this
     is ChatIdWithThreadId -> ChatId(chatId)
+    is BusinessChatId -> ChatId(chatId)
 }
 
 fun IdChatIdentifier.toChatWithThreadId(threadId: MessageThreadId) = IdChatIdentifier(chatId, threadId)
+fun IdChatIdentifier.toBusinessChatId(businessConnectionId: BusinessConnectionId) = IdChatIdentifier(chatId, businessConnectionId)
 
 /**
  * https://core.telegram.org/bots/api#formatting-options
@@ -145,14 +166,22 @@ object FullChatIdentifierSerializer : KSerializer<ChatIdentifier> {
             ChatId(RawChatId(it))
         } ?:let {
             val splitted = id.content.split("/")
-            if (splitted.size == 2) {
-                val (chatId, threadId) = splitted
-                ChatIdWithThreadId(
-                    chatId.toLongOrNull() ?.let(::RawChatId) ?: return@let null,
-                    threadId.toLongOrNull() ?.let(::MessageThreadId) ?: return@let null
-                )
-            } else {
-                null
+            when (splitted.size) {
+                2 -> {
+                    val (chatId, threadId) = splitted
+                    ChatIdWithThreadId(
+                        chatId.toLongOrNull() ?.let(::RawChatId) ?: return@let null,
+                        threadId.toLongOrNull() ?.let(::MessageThreadId) ?: return@let null
+                    )
+                }
+                3 -> {
+                    val (chatId, _, businessConnectionId) = splitted
+                    BusinessChatId(
+                        chatId.toLongOrNull() ?.let(::RawChatId) ?: return@let null,
+                        businessConnectionId.let(::BusinessConnectionId) ?: return@let null
+                    )
+                }
+                else -> null
             }
         } ?: id.content.let {
             if (!it.startsWith("@")) {
@@ -167,6 +196,7 @@ object FullChatIdentifierSerializer : KSerializer<ChatIdentifier> {
         when (value) {
             is ChatId -> encoder.encodeLong(value.chatId.long)
             is ChatIdWithThreadId -> encoder.encodeString("${value.chatId}/${value.threadId}")
+            is BusinessChatId -> encoder.encodeString("${value.chatId}//${value.businessId}")
             is Username -> encoder.encodeString(value.full)
         }
     }

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt

@@ -150,6 +150,7 @@ const val accentColorIdField = "accent_color_id"
 const val profileAccentColorIdField = "profile_accent_color_id"
 const val backgroundCustomEmojiIdField = "background_custom_emoji_id"
 const val profileBackgroundCustomEmojiIdField = "profile_background_custom_emoji_id"
+const val personalChatField = "personal_chat"
 const val hasVisibleHistoryField = "has_visible_history"
 const val unrestrictBoostsCountField = "unrestrict_boost_count"
 const val customEmojiStickerSetNameField = "custom_emoji_sticker_set_name"
@@ -158,6 +159,7 @@ const val canJoinGroupsField = "can_join_groups"
 const val canReadAllGroupMessagesField = "can_read_all_group_messages"
 const val canReplyField = "can_reply"
 const val supportInlineQueriesField = "supports_inline_queries"
+const val canConnectToBusinessField = "can_connect_to_business"
 const val textEntitiesField = "text_entities"
 const val entitiesField = "entities"
 const val stickerSetNameField = "set_name"

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/business_connection/BusinessConnectionId.kt

@@ -7,4 +7,8 @@ import kotlin.jvm.JvmInline
 @JvmInline
 value class BusinessConnectionId(
     val string: String
-)
+) {
+    override fun toString(): String {
+        return string
+    }
+}

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/Abstracts.kt

@@ -16,6 +16,12 @@ sealed interface PrivateChat : Chat, UsernameChat {
     val lastName: String
 }
 
+@Serializable(ChatSerializer::class)
+sealed interface BusinessChat : Chat {
+    override val id: BusinessChatId
+    val original: PrivateChat
+}
+
 @Serializable(ChatSerializer::class)
 sealed interface PublicChat : Chat {
     val title: String

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/ChatSerializers.kt

@@ -1,6 +1,7 @@
 package dev.inmo.tgbotapi.types.chat
 
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.nonstrictJsonFormat
 import kotlinx.serialization.*
@@ -62,8 +63,9 @@ object ChatSerializer : KSerializer<Chat> {
         return try {
             formatter.decodeFromJsonElement(ExtendedChatSerializer, decodedJson)
         } catch (e: SerializationException) {
-            val type = decodedJson[typeField] ?.jsonPrimitive ?.content ?.asChatType ?: error("Field $typeField must be presented, but absent in $decodedJson")
+            val type = decodedJson[typeField] ?.jsonPrimitive ?.content ?.asChatType
             val isForum = decodedJson[isForumField] ?.jsonPrimitive ?.booleanOrNull == true
+            val original = decodedJson[originField]
 
             when (type) {
                 ChatType.Sender -> formatter.decodeFromJsonElement(PrivateChatImpl.serializer(), decodedJson)
@@ -80,6 +82,12 @@ object ChatSerializer : KSerializer<Chat> {
                     decodedJson.toString(),
                     decodedJson
                 )
+                null -> {
+                    when {
+                        original != null -> formatter.decodeFromJsonElement(BusinessChatImpl.serializer(), decodedJson)
+                        else -> error("Field $typeField must be presented for common types (excluding Business chats), but absent in $decodedJson")
+                    }
+                }
             }
         }
     }
@@ -101,8 +109,9 @@ object PreviewChatSerializer : KSerializer<PreviewChat> {
     override fun deserialize(decoder: Decoder): PreviewChat {
         val decodedJson = JsonObject.serializer().deserialize(decoder)
 
-        val type = decodedJson[typeField] ?.jsonPrimitive ?.content ?.asChatType ?: error("Field $typeField must be presented, but absent in $decodedJson")
+        val type = decodedJson[typeField] ?.jsonPrimitive ?.content ?.asChatType
         val isForum = decodedJson[isForumField] ?.jsonPrimitive ?.booleanOrNull == true
+        val original = decodedJson[originField]
 
         return when (type) {
             ChatType.Sender -> formatter.decodeFromJsonElement(PrivateChatImpl.serializer(), decodedJson)
@@ -119,12 +128,19 @@ object PreviewChatSerializer : KSerializer<PreviewChat> {
                 decodedJson.toString(),
                 decodedJson
             )
+            null -> {
+                when {
+                    original != null -> formatter.decodeFromJsonElement(PreviewBusinessChat.serializer(), decodedJson)
+                    else -> error("Field $typeField must be presented for common types (excluding Business chats), but absent in $decodedJson")
+                }
+            }
         }
     }
 
     override fun serialize(encoder: Encoder, value: PreviewChat) {
         when (value) {
             is PrivateChatImpl -> PrivateChatImpl.serializer().serialize(encoder, value)
+            is BusinessChatImpl -> BusinessChatImpl.serializer().serialize(encoder, value)
             is GroupChatImpl -> GroupChatImpl.serializer().serialize(encoder, value)
             is SupergroupChatImpl -> SupergroupChatImpl.serializer().serialize(encoder, value)
             is ForumChatImpl -> ForumChatImpl.serializer().serialize(encoder, value)
@@ -144,8 +160,9 @@ sealed class ExtendedChatSerializer : KSerializer<ExtendedChat> {
     override fun deserialize(decoder: Decoder): ExtendedChat {
         val decodedJson = JsonObject.serializer().deserialize(decoder)
 
-        val type = decodedJson[typeField] ?.jsonPrimitive ?.content ?.asChatType ?: error("Field $typeField must be presented, but absent in $decodedJson")
+        val type = decodedJson[typeField] ?.jsonPrimitive ?.content ?.asChatType
         val isForum = decodedJson[isForumField] ?.jsonPrimitive ?.booleanOrNull == true
+        val original = decodedJson[originField]
 
         return when (type) {
             ChatType.Sender -> formatter.decodeFromJsonElement(ExtendedPrivateChatImpl.serializer(), decodedJson)
@@ -162,11 +179,18 @@ sealed class ExtendedChatSerializer : KSerializer<ExtendedChat> {
                 decodedJson.toString(),
                 decodedJson
             )
+            null -> {
+                when {
+                    original != null -> formatter.decodeFromJsonElement(ExtendedBusinessChatImpl.serializer(), decodedJson)
+                    else -> error("Field $typeField must be presented for common types (excluding Business chats), but absent in $decodedJson")
+                }
+            }
         }
     }
 
     override fun serialize(encoder: Encoder, value: ExtendedChat) {
         when (value) {
+            is ExtendedBusinessChatImpl -> ExtendedBusinessChatImpl.serializer().serialize(encoder, value)
             is ExtendedPrivateChatImpl -> ExtendedPrivateChatImpl.serializer().serialize(encoder, value)
             is ExtendedGroupChatImpl -> ExtendedGroupChatImpl.serializer().serialize(encoder, value)
             is ExtendedSupergroupChatImpl -> ExtendedSupergroupChatImpl.serializer().serialize(encoder, value)
@@ -190,6 +214,20 @@ sealed class ExtendedChatSerializer : KSerializer<ExtendedChat> {
             }
         }
     }
+    class BasedOnBusinessConnection(private val businessConnectionId: BusinessConnectionId) : ExtendedChatSerializer() {
+        override fun deserialize(decoder: Decoder): ExtendedChat {
+            return super.deserialize(decoder).let {
+                if (it is ExtendedPrivateChatImpl) {
+                    ExtendedBusinessChatImpl(
+                        BusinessChatId(it.id.chatId, businessConnectionId),
+                        it
+                    )
+                } else {
+                    it
+                }
+            }
+        }
+    }
 
     companion object : ExtendedChatSerializer()
 }

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/Extended.kt

@@ -133,6 +133,9 @@ data class ExtendedPrivateChatImpl(
     override val businessLocation: BusinessLocation? = null,
     @SerialName(businessOpeningHoursField)
     override val businessOpeningHours: BusinessOpeningHours? = null,
+    @SerialName(personalChatField)
+    @Serializable(PreviewChatSerializer::class)
+    override val personalChat: PreviewChannelChat? = null
 ) : ExtendedPrivateChat
 
 typealias ExtendedUser = ExtendedPrivateChatImpl
@@ -263,6 +266,7 @@ data class ExtendedForumChatImpl(
 
 @Serializable
 data class ExtendedBot(
+    @SerialName(idField)
     override val id: UserId,
     @SerialName(firstNameField)
     override val firstName: String,
@@ -276,6 +280,8 @@ data class ExtendedBot(
     val canReadAllGroupMessages: Boolean = false,
     @SerialName(supportInlineQueriesField)
     val supportsInlineQueries: Boolean = false,
+    @SerialName(canConnectToBusinessField)
+    val canConnectToBusiness: Boolean = false,
     @SerialName(photoField)
     override val chatPhoto: ChatPhoto? = null,
     @SerialName(accentColorIdField)
@@ -291,6 +297,14 @@ data class ExtendedBot(
     private val isBot = true
 }
 
+@Serializable
+data class ExtendedBusinessChatImpl(
+    @SerialName(idField)
+    override val id: BusinessChatId,
+    @SerialName(originField)
+    override val original: ExtendedPrivateChat
+) : ExtendedBusinessChat, ExtendedChat by original
+
 data class UnknownExtendedChat(
     override val id: IdChatIdentifier,
     val raw: String,

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/ExtendedAbstracts.kt

@@ -46,6 +46,8 @@ sealed interface ExtendedPrivateChat : PrivateChat, ExtendedChatWithUsername, Ex
     val businessLocation: BusinessLocation?
     val businessOpeningHours: BusinessOpeningHours?
 
+    val personalChat: PreviewChannelChat?
+
     val allowCreateUserIdLink: Boolean
         get() = hasPrivateForwards
 }
@@ -93,3 +95,8 @@ sealed interface ExtendedForumChat : ExtendedSupergroupChat, ForumChat
 sealed interface ExtendedChatWithUsername : UsernameChat, ExtendedChat {
     val activeUsernames: List<Username>
 }
+
+@Serializable(ExtendedChatSerializer.Companion::class)
+sealed interface ExtendedBusinessChat : BusinessChat, ExtendedChat {
+    override val original: ExtendedPrivateChat
+}

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/Impls.kt

@@ -30,6 +30,15 @@ data class PrivateChatImpl(
     override val lastName: String = ""
 ) : PreviewPrivateChat
 
+@Serializable
+@RiskFeature("This class is a subject of changes. It is better to use PrivateChat due")
+data class BusinessChatImpl(
+    @SerialName(idField)
+    override val id: BusinessChatId,
+    @SerialName(originField)
+    override val original: PreviewPrivateChat
+) : PreviewBusinessChat
+
 @Serializable
 @RiskFeature("This class is a subject of changes. It is better to use SupergroupChat due")
 data class SupergroupChatImpl(

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/PreviewAbstracts.kt

@@ -11,6 +11,9 @@ sealed interface PreviewUsernameChat : PreviewChat, UsernameChat
 @Serializable(PreviewChatSerializer::class)
 sealed interface PreviewPrivateChat : PreviewUsernameChat, PrivateChat
 
+@Serializable(PreviewChatSerializer::class)
+sealed interface PreviewBusinessChat : BusinessChat, PreviewChat
+
 @Serializable(PreviewChatSerializer::class)
 sealed interface PreviewPublicChat : PreviewChat, PublicChat
 

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/BusinessContentMessageImpl.kt

@@ -15,7 +15,7 @@ import dev.inmo.tgbotapi.types.message.content.MessageContent
 data class BusinessContentMessageImpl<T: MessageContent>(
     override val messageId: MessageId,
     override val from: User,
-    override val chat: PreviewPrivateChat,
+    override val chat: PreviewBusinessChat,
     override val businessConnectionId: BusinessConnectionId,
     override val content: T,
     override val date: DateTime,
@@ -26,12 +26,13 @@ data class BusinessContentMessageImpl<T: MessageContent>(
     override val replyMarkup: InlineKeyboardMarkup?,
     override val senderBot: CommonBot?,
     override val mediaGroupId: MediaGroupId?,
-    override val senderBusinessBot: PreviewBot? = null
+    override val senderBusinessBot: PreviewBot?,
+    override val fromOffline: Boolean,
 ) : BusinessContentMessage<T> {
     constructor(
         messageId: MessageId,
         from: User,
-        chat: PreviewPrivateChat,
+        chat: PreviewBusinessChat,
         businessConnectionId: BusinessConnectionId,
         content: T,
         date: DateTime,
@@ -42,7 +43,8 @@ data class BusinessContentMessageImpl<T: MessageContent>(
         replyMarkup: InlineKeyboardMarkup?,
         senderBot: CommonBot?,
         mediaGroupId: MediaGroupId?,
-        senderBusinessBot: PreviewBot? = null,
+        senderBusinessBot: PreviewBot?,
+        fromOffline: Boolean,
     ) : this(
         messageId = messageId,
         from = from,
@@ -57,6 +59,7 @@ data class BusinessContentMessageImpl<T: MessageContent>(
         replyMarkup = replyMarkup,
         senderBot = senderBot,
         mediaGroupId = mediaGroupId,
-        senderBusinessBot = senderBusinessBot
+        senderBusinessBot = senderBusinessBot,
+        fromOffline = fromOffline
     )
 }

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/ChannelContentMessageImpl.kt

@@ -21,6 +21,7 @@ data class ChannelContentMessageImpl<T: MessageContent>(
     override val senderBot: CommonBot?,
     override val authorSignature: AuthorSignature?,
     override val mediaGroupId: MediaGroupId?,
+    override val fromOffline: Boolean,
 ) : ChannelContentMessage<T> {
     constructor(
         messageId: MessageId,
@@ -35,7 +36,8 @@ data class ChannelContentMessageImpl<T: MessageContent>(
         senderBot: CommonBot?,
         authorSignature: AuthorSignature?,
         mediaGroupId: MediaGroupId?,
+        fromOffline: Boolean,
     ) : this(
-        messageId, chat, content, date, editDate, hasProtectedContent, forwardInfo.messageOrigin(), replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, senderBot, authorSignature, mediaGroupId
+        messageId, chat, content, date, editDate, hasProtectedContent, forwardInfo.messageOrigin(), replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, senderBot, authorSignature, mediaGroupId, fromOffline
     )
 }

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/GroupMessages.kt

@@ -23,6 +23,7 @@ data class ConnectedFromChannelGroupContentMessageImpl<T : MessageContent>(
     override val senderBot: CommonBot?,
     override val authorSignature: AuthorSignature?,
     override val mediaGroupId: MediaGroupId?,
+    override val fromOffline: Boolean,
 ) : ConnectedFromChannelGroupContentMessage<T> {
 
     constructor(
@@ -39,8 +40,9 @@ data class ConnectedFromChannelGroupContentMessageImpl<T : MessageContent>(
         senderBot: CommonBot?,
         authorSignature: AuthorSignature?,
         mediaGroupId: MediaGroupId?,
+        fromOffline: Boolean,
     ) : this(
-        chat, channel, messageId, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, authorSignature, mediaGroupId
+        chat, channel, messageId, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, authorSignature, mediaGroupId, fromOffline
     )
 }
 
@@ -58,6 +60,7 @@ data class UnconnectedFromChannelGroupContentMessageImpl<T: MessageContent>(
     override val senderBot: CommonBot?,
     override val authorSignature: AuthorSignature?,
     override val mediaGroupId: MediaGroupId?,
+    override val fromOffline: Boolean,
 ) : UnconnectedFromChannelGroupContentMessage<T> {
     constructor(
         chat: PreviewGroupChat,
@@ -73,8 +76,9 @@ data class UnconnectedFromChannelGroupContentMessageImpl<T: MessageContent>(
         senderBot: CommonBot?,
         authorSignature: AuthorSignature?,
         mediaGroupId: MediaGroupId?,
+        fromOffline: Boolean,
     ) : this(
-        chat, channel, messageId, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, authorSignature, mediaGroupId
+        chat, channel, messageId, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, authorSignature, mediaGroupId, fromOffline
     )
 }
 
@@ -91,6 +95,7 @@ data class AnonymousGroupContentMessageImpl<T : MessageContent>(
     override val senderBot: CommonBot?,
     override val authorSignature: AuthorSignature?,
     override val mediaGroupId: MediaGroupId?,
+    override val fromOffline: Boolean,
 ) : AnonymousGroupContentMessage<T> {
     constructor(
         chat: PreviewGroupChat,
@@ -105,8 +110,9 @@ data class AnonymousGroupContentMessageImpl<T : MessageContent>(
         senderBot: CommonBot?,
         authorSignature: AuthorSignature?,
         mediaGroupId: MediaGroupId?,
+        fromOffline: Boolean,
     ) : this(
-        chat, messageId, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, authorSignature, mediaGroupId
+        chat, messageId, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, authorSignature, mediaGroupId, fromOffline
     )
 }
 
@@ -123,7 +129,8 @@ data class CommonGroupContentMessageImpl<T : MessageContent>(
     override val content: T,
     override val senderBot: CommonBot?,
     override val mediaGroupId: MediaGroupId?,
-    override val senderBoostsCount: Int?
+    override val senderBoostsCount: Int?,
+    override val fromOffline: Boolean,
 ) : CommonGroupContentMessage<T> {
     constructor(
         chat: PreviewGroupChat,
@@ -139,8 +146,9 @@ data class CommonGroupContentMessageImpl<T : MessageContent>(
         senderBot: CommonBot?,
         mediaGroupId: MediaGroupId?,
         senderBoostsCount: Int?,
+        fromOffline: Boolean,
     ) : this(
-        chat, messageId, from, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, mediaGroupId, senderBoostsCount
+        chat, messageId, from, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, mediaGroupId, senderBoostsCount, fromOffline
     )
 }
 
@@ -159,6 +167,7 @@ data class FromChannelForumContentMessageImpl<T: MessageContent>(
     override val senderBot: CommonBot?,
     override val authorSignature: AuthorSignature?,
     override val mediaGroupId: MediaGroupId?,
+    override val fromOffline: Boolean,
 ) : FromChannelForumContentMessage<T> {
     constructor(
         chat: PreviewForumChat,
@@ -175,8 +184,9 @@ data class FromChannelForumContentMessageImpl<T: MessageContent>(
         senderBot: CommonBot?,
         authorSignature: AuthorSignature?,
         mediaGroupId: MediaGroupId?,
+        fromOffline: Boolean,
     ) : this(
-        chat, channel, messageId, threadId, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, authorSignature, mediaGroupId
+        chat, channel, messageId, threadId, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, authorSignature, mediaGroupId, fromOffline
     )
 }
 
@@ -194,6 +204,7 @@ data class AnonymousForumContentMessageImpl<T : MessageContent>(
     override val senderBot: CommonBot?,
     override val authorSignature: AuthorSignature?,
     override val mediaGroupId: MediaGroupId?,
+    override val fromOffline: Boolean,
 ) : AnonymousForumContentMessage<T> {
     constructor(
         chat: PreviewForumChat,
@@ -209,8 +220,9 @@ data class AnonymousForumContentMessageImpl<T : MessageContent>(
         senderBot: CommonBot?,
         authorSignature: AuthorSignature?,
         mediaGroupId: MediaGroupId?,
+        fromOffline: Boolean,
     ) : this(
-        chat, messageId, threadId, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, authorSignature, mediaGroupId
+        chat, messageId, threadId, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, authorSignature, mediaGroupId, fromOffline
     )
 }
 
@@ -229,6 +241,7 @@ data class CommonForumContentMessageImpl<T : MessageContent>(
     override val senderBot: CommonBot?,
     override val mediaGroupId: MediaGroupId?,
     override val senderBoostsCount: Int?,
+    override val fromOffline: Boolean,
 ) : CommonForumContentMessage<T> {
     constructor(
         chat: PreviewForumChat,
@@ -245,7 +258,8 @@ data class CommonForumContentMessageImpl<T : MessageContent>(
         senderBot: CommonBot?,
         mediaGroupId: MediaGroupId?,
         senderBoostsCount: Int?,
+        fromOffline: Boolean,
     ) : this(
-        chat, messageId, threadId, from, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, mediaGroupId, senderBoostsCount
+        chat, messageId, threadId, from, date, forwardInfo.messageOrigin(), editDate, hasProtectedContent, replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, content, senderBot, mediaGroupId, senderBoostsCount, fromOffline
     )
 }

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/PrivateContentMessageImpl.kt

@@ -23,6 +23,7 @@ data class PrivateContentMessageImpl<T: MessageContent>(
     override val replyMarkup: InlineKeyboardMarkup?,
     override val senderBot: CommonBot?,
     override val mediaGroupId: MediaGroupId?,
+    override val fromOffline: Boolean,
 ) : PrivateContentMessage<T> {
     constructor(
         messageId: MessageId,
@@ -37,7 +38,8 @@ data class PrivateContentMessageImpl<T: MessageContent>(
         replyMarkup: InlineKeyboardMarkup?,
         senderBot: CommonBot?,
         mediaGroupId: MediaGroupId?,
+        fromOffline: Boolean,
     ) : this(
-        messageId, from, chat, content, date, editDate, hasProtectedContent, forwardInfo.messageOrigin(), replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, senderBot, mediaGroupId
+        messageId, from, chat, content, date, editDate, hasProtectedContent, forwardInfo.messageOrigin(), replyTo ?.let { ReplyInfo.Internal(it) }, replyMarkup, senderBot, mediaGroupId, fromOffline
     )
 }

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/RawMessage.kt

@@ -105,6 +105,8 @@ internal data class RawMessage(
     private val users_shared: UsersShared? = null,
     private val chat_shared: ChatShared? = null,
 
+    private val is_from_offline: Boolean = false,
+
     // Voice Chat Service Messages
     private val video_chat_scheduled: VideoChatScheduled? = null,
     private val video_chat_started: VideoChatStarted? = null,
@@ -313,18 +315,19 @@ internal data class RawMessage(
                 when (chat) {
                     is PreviewPublicChat -> when (chat) {
                         is PreviewChannelChat -> ChannelContentMessageImpl(
-                            messageId,
-                            chat,
-                            content,
-                            date.asDate,
-                            edit_date?.asDate,
-                            has_protected_content == true,
-                            forward_origin,
-                            replyInfo,
-                            reply_markup,
-                            via_bot,
-                            author_signature,
-                            media_group_id
+                            messageId = messageId,
+                            chat = chat,
+                            content = content,
+                            date = date.asDate,
+                            editDate = edit_date?.asDate,
+                            hasProtectedContent = has_protected_content == true,
+                            forwardOrigin = forward_origin,
+                            replyInfo = replyInfo,
+                            replyMarkup = reply_markup,
+                            senderBot = via_bot,
+                            authorSignature = author_signature,
+                            mediaGroupId = media_group_id,
+                            fromOffline = is_from_offline
                         )
                         is PreviewForumChat -> if (messageThreadId != null) {
                             val chatId = ChatIdWithThreadId(
@@ -336,215 +339,231 @@ internal data class RawMessage(
                             }
                             when (sender_chat) {
                                 is PreviewChannelChat -> FromChannelForumContentMessageImpl(
-                                    actualForumChat,
-                                    sender_chat,
-                                    messageId,
-                                    messageThreadId,
-                                    date.asDate,
-                                    forward_origin,
-                                    edit_date ?.asDate,
-                                    has_protected_content == true,
-                                    replyInfo,
-                                    reply_markup,
-                                    content,
-                                    via_bot,
-                                    author_signature,
-                                    media_group_id
+                                    chat = actualForumChat,
+                                    channel = sender_chat,
+                                    messageId = messageId,
+                                    threadId = messageThreadId,
+                                    date = date.asDate,
+                                    forwardOrigin = forward_origin,
+                                    editDate = edit_date ?.asDate,
+                                    hasProtectedContent = has_protected_content == true,
+                                    replyInfo = replyInfo,
+                                    replyMarkup = reply_markup,
+                                    content = content,
+                                    senderBot = via_bot,
+                                    authorSignature = author_signature,
+                                    mediaGroupId = media_group_id,
+                                    fromOffline = is_from_offline
                                 )
                                 is PreviewGroupChat -> AnonymousForumContentMessageImpl(
-                                    actualForumChat,
-                                    messageId,
-                                    messageThreadId,
-                                    date.asDate,
-                                    forward_origin,
-                                    edit_date ?.asDate,
-                                    has_protected_content == true,
-                                    replyInfo,
-                                    reply_markup,
-                                    content,
-                                    via_bot,
-                                    author_signature,
-                                    media_group_id
+                                    chat = actualForumChat,
+                                    messageId = messageId,
+                                    threadId = messageThreadId,
+                                    date = date.asDate,
+                                    forwardOrigin = forward_origin,
+                                    editDate = edit_date ?.asDate,
+                                    hasProtectedContent = has_protected_content == true,
+                                    replyInfo = replyInfo,
+                                    replyMarkup = reply_markup,
+                                    content = content,
+                                    senderBot = via_bot,
+                                    authorSignature = author_signature,
+                                    mediaGroupId = media_group_id,
+                                    fromOffline = is_from_offline
                                 )
                                 null -> CommonForumContentMessageImpl(
-                                    actualForumChat,
-                                    messageId,
-                                    messageThreadId,
-                                    from ?: error("It is expected that in messages from non anonymous users and channels user must be specified"),
-                                    date.asDate,
-                                    forward_origin,
-                                    edit_date ?.asDate,
-                                    has_protected_content == true,
-                                    replyInfo,
-                                    reply_markup,
-                                    content,
-                                    via_bot,
-                                    media_group_id,
-                                    sender_boost_count
+                                    chat = actualForumChat,
+                                    messageId = messageId,
+                                    threadId = messageThreadId,
+                                    from = from ?: error("It is expected that in messages from non anonymous users and channels user must be specified"),
+                                    date = date.asDate,
+                                    forwardOrigin = forward_origin,
+                                    editDate = edit_date ?.asDate,
+                                    hasProtectedContent = has_protected_content == true,
+                                    replyInfo = replyInfo,
+                                    replyMarkup = reply_markup,
+                                    content = content,
+                                    senderBot = via_bot,
+                                    mediaGroupId = media_group_id,
+                                    senderBoostsCount = sender_boost_count,
+                                    fromOffline = is_from_offline
                                 )
                             }
                         } else {
                             when (sender_chat) {
                                 is PreviewChannelChat -> if (is_automatic_forward == true) {
                                     ConnectedFromChannelGroupContentMessageImpl(
-                                        chat,
-                                        sender_chat,
-                                        messageId,
-                                        date.asDate,
-                                        forward_origin,
-                                        edit_date ?.asDate,
-                                        has_protected_content == true,
-                                        replyInfo,
-                                        reply_markup,
-                                        content,
-                                        via_bot,
-                                        author_signature,
-                                        media_group_id
+                                        chat = chat,
+                                        channel = sender_chat,
+                                        messageId = messageId,
+                                        date = date.asDate,
+                                        forwardOrigin = forward_origin,
+                                        editDate = edit_date ?.asDate,
+                                        hasProtectedContent = has_protected_content == true,
+                                        replyInfo = replyInfo,
+                                        replyMarkup = reply_markup,
+                                        content = content,
+                                        senderBot = via_bot,
+                                        authorSignature = author_signature,
+                                        mediaGroupId = media_group_id,
+                                        fromOffline = is_from_offline
                                     )
                                 } else {
                                     UnconnectedFromChannelGroupContentMessageImpl(
-                                        chat,
-                                        sender_chat,
-                                        messageId,
-                                        date.asDate,
-                                        forward_origin,
-                                        edit_date ?.asDate,
-                                        has_protected_content == true,
-                                        replyInfo,
-                                        reply_markup,
-                                        content,
-                                        via_bot,
-                                        author_signature,
-                                        media_group_id
+                                        chat = chat,
+                                        channel = sender_chat,
+                                        messageId = messageId,
+                                        date = date.asDate,
+                                        forwardOrigin = forward_origin,
+                                        editDate = edit_date ?.asDate,
+                                        hasProtectedContent = has_protected_content == true,
+                                        replyInfo = replyInfo,
+                                        replyMarkup = reply_markup,
+                                        content = content,
+                                        senderBot = via_bot,
+                                        authorSignature = author_signature,
+                                        mediaGroupId = media_group_id,
+                                        fromOffline = is_from_offline
                                     )
                                 }
                                 is GroupChat -> AnonymousGroupContentMessageImpl(
-                                    chat,
-                                    messageId,
-                                    date.asDate,
-                                    forward_origin,
-                                    edit_date ?.asDate,
-                                    has_protected_content == true,
-                                    replyInfo,
-                                    reply_markup,
-                                    content,
-                                    via_bot,
-                                    author_signature,
-                                    media_group_id
+                                    chat = chat,
+                                    messageId = messageId,
+                                    date = date.asDate,
+                                    forwardOrigin = forward_origin,
+                                    editDate = edit_date ?.asDate,
+                                    hasProtectedContent = has_protected_content == true,
+                                    replyInfo = replyInfo,
+                                    replyMarkup = reply_markup,
+                                    content = content,
+                                    senderBot = via_bot,
+                                    authorSignature = author_signature,
+                                    mediaGroupId = media_group_id,
+                                    fromOffline = is_from_offline
                                 )
                                 null -> CommonGroupContentMessageImpl(
-                                    chat,
-                                    messageId,
-                                    from ?: error("It is expected that in messages from non anonymous users and channels user must be specified"),
-                                    date.asDate,
-                                    forward_origin,
-                                    edit_date ?.asDate,
-                                    has_protected_content == true,
-                                    replyInfo,
-                                    reply_markup,
-                                    content,
-                                    via_bot,
-                                    media_group_id,
-                                    sender_boost_count
+                                    chat = chat,
+                                    messageId = messageId,
+                                    from = from ?: error("It is expected that in messages from non anonymous users and channels user must be specified"),
+                                    date = date.asDate,
+                                    forwardOrigin = forward_origin,
+                                    editDate = edit_date ?.asDate,
+                                    hasProtectedContent = has_protected_content == true,
+                                    replyInfo = replyInfo,
+                                    replyMarkup = reply_markup,
+                                    content = content,
+                                    senderBot = via_bot,
+                                    mediaGroupId = media_group_id,
+                                    senderBoostsCount = sender_boost_count,
+                                    fromOffline = is_from_offline
                                 )
                             }
                         }
                         is PreviewGroupChat -> when (sender_chat) {
                             is PreviewChannelChat -> if (is_automatic_forward == true) {
                                 ConnectedFromChannelGroupContentMessageImpl(
-                                    chat,
-                                    sender_chat,
-                                    messageId,
-                                    date.asDate,
-                                    forward_origin,
-                                    edit_date ?.asDate,
-                                    has_protected_content == true,
-                                    replyInfo,
-                                    reply_markup,
-                                    content,
-                                    via_bot,
-                                    author_signature,
-                                    media_group_id
+                                    chat = chat,
+                                    channel = sender_chat,
+                                    messageId = messageId,
+                                    date = date.asDate,
+                                    forwardOrigin = forward_origin,
+                                    editDate = edit_date ?.asDate,
+                                    hasProtectedContent = has_protected_content == true,
+                                    replyInfo = replyInfo,
+                                    replyMarkup = reply_markup,
+                                    content = content,
+                                    senderBot = via_bot,
+                                    authorSignature = author_signature,
+                                    mediaGroupId = media_group_id,
+                                    fromOffline = is_from_offline
                                 )
                             } else {
                                 UnconnectedFromChannelGroupContentMessageImpl(
-                                    chat,
-                                    sender_chat,
-                                    messageId,
-                                    date.asDate,
-                                    forward_origin,
-                                    edit_date ?.asDate,
-                                    has_protected_content == true,
-                                    replyInfo,
-                                    reply_markup,
-                                    content,
-                                    via_bot,
-                                    author_signature,
-                                    media_group_id
+                                    chat = chat,
+                                    channel = sender_chat,
+                                    messageId = messageId,
+                                    date = date.asDate,
+                                    forwardOrigin = forward_origin,
+                                    editDate = edit_date ?.asDate,
+                                    hasProtectedContent = has_protected_content == true,
+                                    replyInfo = replyInfo,
+                                    replyMarkup = reply_markup,
+                                    content = content,
+                                    senderBot = via_bot,
+                                    authorSignature = author_signature,
+                                    mediaGroupId = media_group_id,
+                                    fromOffline = is_from_offline
                                 )
                             }
                             is PreviewGroupChat -> AnonymousGroupContentMessageImpl(
-                                chat,
-                                messageId,
-                                date.asDate,
-                                forward_origin,
-                                edit_date ?.asDate,
-                                has_protected_content == true,
-                                replyInfo,
-                                reply_markup,
-                                content,
-                                via_bot,
-                                author_signature,
-                                media_group_id
+                                chat = chat,
+                                messageId = messageId,
+                                date = date.asDate,
+                                forwardOrigin = forward_origin,
+                                editDate = edit_date ?.asDate,
+                                hasProtectedContent = has_protected_content == true,
+                                replyInfo = replyInfo,
+                                replyMarkup = reply_markup,
+                                content = content,
+                                senderBot = via_bot,
+                                authorSignature = author_signature,
+                                mediaGroupId = media_group_id,
+                                fromOffline = is_from_offline
                             )
                             null -> CommonGroupContentMessageImpl(
-                                chat,
-                                messageId,
-                                from ?: error("It is expected that in messages from non anonymous users and channels user must be specified"),
-                                date.asDate,
-                                forward_origin,
-                                edit_date ?.asDate,
-                                has_protected_content == true,
-                                replyInfo,
-                                reply_markup,
-                                content,
-                                via_bot,
-                                media_group_id,
-                                sender_boost_count
+                                chat = chat,
+                                messageId = messageId,
+                                from = from ?: error("It is expected that in messages from non anonymous users and channels user must be specified"),
+                                date = date.asDate,
+                                forwardOrigin = forward_origin,
+                                editDate = edit_date ?.asDate,
+                                hasProtectedContent = has_protected_content == true,
+                                replyInfo = replyInfo,
+                                replyMarkup = reply_markup,
+                                content = content,
+                                senderBot = via_bot,
+                                mediaGroupId = media_group_id,
+                                senderBoostsCount = sender_boost_count,
+                                fromOffline = is_from_offline
                             )
                         }
                     }
                     is PreviewPrivateChat -> if (business_connection_id == null) {
                         PrivateContentMessageImpl(
-                            messageId,
-                            from ?: error("Was detected common message, but owner (sender) of the message was not found"),
-                            chat,
-                            content,
-                            date.asDate,
-                            edit_date?.asDate,
-                            has_protected_content == true,
-                            forward_origin,
-                            replyInfo,
-                            reply_markup,
-                            via_bot,
-                            media_group_id
+                            messageId = messageId,
+                            from = from ?: error("Was detected common message, but owner (sender) of the message was not found"),
+                            chat = chat,
+                            content = content,
+                            date = date.asDate,
+                            editDate = edit_date?.asDate,
+                            hasProtectedContent = has_protected_content == true,
+                            forwardOrigin = forward_origin,
+                            replyInfo = replyInfo,
+                            replyMarkup = reply_markup,
+                            senderBot = via_bot,
+                            mediaGroupId = media_group_id,
+                            fromOffline = is_from_offline
                         )
                     } else {
                         BusinessContentMessageImpl(
-                            messageId,
-                            from ?: error("Was detected common message, but owner (sender) of the message was not found"),
-                            chat,
-                            business_connection_id,
-                            content,
-                            date.asDate,
-                            edit_date?.asDate,
-                            has_protected_content == true,
-                            forward_origin,
-                            replyInfo,
-                            reply_markup,
-                            via_bot,
-                            media_group_id,
-                            sender_business_bot
+                            messageId = messageId,
+                            from = from ?: error("Was detected common message, but owner (sender) of the message was not found"),
+                            chat = BusinessChatImpl(
+                                chat.id.toBusinessChatId(business_connection_id),
+                                chat
+                            ),
+                            businessConnectionId = business_connection_id,
+                            content = content,
+                            date = date.asDate,
+                            editDate = edit_date?.asDate,
+                            hasProtectedContent = has_protected_content == true,
+                            forwardOrigin = forward_origin,
+                            replyInfo = replyInfo,
+                            replyMarkup = reply_markup,
+                            senderBot = via_bot,
+                            mediaGroupId = media_group_id,
+                            senderBusinessBot = sender_business_bot,
+                            fromOffline = is_from_offline
                         )
                     }
                     else -> error("Unknown type of chat: $chat")

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/abstracts/BusinessContentMessage.kt

@@ -3,12 +3,13 @@ package dev.inmo.tgbotapi.types.message.abstracts
 import dev.inmo.tgbotapi.abstracts.types.WithBusinessConnectionId
 import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.chat.PreviewBot
+import dev.inmo.tgbotapi.types.chat.PreviewBusinessChat
 import dev.inmo.tgbotapi.types.chat.PreviewPrivateChat
 import dev.inmo.tgbotapi.types.message.content.MessageContent
 
 interface BusinessContentMessage<T: MessageContent> : PossiblySentViaBotCommonMessage<T>, FromUserMessage,
     WithBusinessConnectionId {
-    override val chat: PreviewPrivateChat
+    override val chat: PreviewBusinessChat
     override val businessConnectionId: BusinessConnectionId
     val senderBusinessBot: PreviewBot?
 }

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/abstracts/CommonMessage.kt

@@ -8,5 +8,6 @@ sealed interface CommonMessage<out T: MessageContent> : AccessibleMessage,
     PossiblyReplyMessage,
     PossiblyMarkedUp,
     PossiblyBusinessMessage,
+    PossiblyOfflineMessage,
     PossiblyMediaGroupMessage<T>,
     ContentMessage<T>

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/abstracts/PossiblyOfflineMessage.kt

@@ -0,0 +1,5 @@
+package dev.inmo.tgbotapi.types.message.abstracts
+
+interface PossiblyOfflineMessage : Message {
+    val fromOffline: Boolean
+}

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/abstracts/PrivateContentMessage.kt

@@ -3,6 +3,6 @@ package dev.inmo.tgbotapi.types.message.abstracts
 import dev.inmo.tgbotapi.types.chat.PreviewPrivateChat
 import dev.inmo.tgbotapi.types.message.content.MessageContent
 
-interface PrivateContentMessage<T: MessageContent> : PossiblySentViaBotCommonMessage<T>, FromUserMessage {
+interface PrivateContentMessage<T: MessageContent> : PossiblySentViaBotCommonMessage<T>, FromUserMessage, PossiblyOfflineMessage {
     override val chat: PreviewPrivateChat
 }

tgbotapi.utils/api/tgbotapi.utils.api

@@ -1745,7 +1745,6 @@ public final class dev/inmo/tgbotapi/extensions/utils/ClassCastsNewKt {
 	public static final fun ifPollAnswerUpdate (Ldev/inmo/tgbotapi/types/update/abstracts/Update;Lkotlin/jvm/functions/Function1;)Ljava/lang/Object;
 	public static final fun ifPollContent (Ldev/inmo/tgbotapi/types/message/content/ResendableContent;Lkotlin/jvm/functions/Function1;)Ljava/lang/Object;
 	public static final fun ifPollUpdate (Ldev/inmo/tgbotapi/types/update/abstracts/Update;Lkotlin/jvm/functions/Function1;)Ljava/lang/Object;
-	public static final fun ifPossiblyBusinessMessage (Ldev/inmo/tgbotapi/types/message/abstracts/Message;Lkotlin/jvm/functions/Function1;)Ljava/lang/Object;
 	public static final fun ifPossiblyEditedMessage (Ldev/inmo/tgbotapi/types/message/abstracts/Message;Lkotlin/jvm/functions/Function1;)Ljava/lang/Object;
 	public static final fun ifPossiblyForwardedMessage (Ldev/inmo/tgbotapi/types/message/abstracts/Message;Lkotlin/jvm/functions/Function1;)Ljava/lang/Object;
 	public static final fun ifPossiblyMediaGroupMessage (Ldev/inmo/tgbotapi/types/message/abstracts/Message;Lkotlin/jvm/functions/Function1;)Ljava/lang/Object;
@@ -2158,8 +2157,6 @@ public final class dev/inmo/tgbotapi/extensions/utils/ClassCastsNewKt {
 	public static final fun pollContentOrThrow (Ldev/inmo/tgbotapi/types/message/content/ResendableContent;)Ldev/inmo/tgbotapi/types/message/content/PollContent;
 	public static final fun pollUpdateOrNull (Ldev/inmo/tgbotapi/types/update/abstracts/Update;)Ldev/inmo/tgbotapi/types/update/PollUpdate;
 	public static final fun pollUpdateOrThrow (Ldev/inmo/tgbotapi/types/update/abstracts/Update;)Ldev/inmo/tgbotapi/types/update/PollUpdate;
-	public static final fun possiblyBusinessMessageOrNull (Ldev/inmo/tgbotapi/types/message/abstracts/Message;)Ldev/inmo/tgbotapi/types/message/abstracts/PossiblyBusinessMessage;
-	public static final fun possiblyBusinessMessageOrThrow (Ldev/inmo/tgbotapi/types/message/abstracts/Message;)Ldev/inmo/tgbotapi/types/message/abstracts/PossiblyBusinessMessage;
 	public static final fun possiblyEditedMessageOrNull (Ldev/inmo/tgbotapi/types/message/abstracts/Message;)Ldev/inmo/tgbotapi/types/message/abstracts/PossiblyEditedMessage;
 	public static final fun possiblyEditedMessageOrThrow (Ldev/inmo/tgbotapi/types/message/abstracts/Message;)Ldev/inmo/tgbotapi/types/message/abstracts/PossiblyEditedMessage;
 	public static final fun possiblyForwardedMessageOrNull (Ldev/inmo/tgbotapi/types/message/abstracts/Message;)Ldev/inmo/tgbotapi/types/message/abstracts/PossiblyForwardedMessage;

tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/ClassCastsNew.kt

@@ -16,6 +16,7 @@ import dev.inmo.tgbotapi.requests.answers.InlineQueryResultsButton
 import dev.inmo.tgbotapi.requests.send.payments.CreateInvoiceLink
 import dev.inmo.tgbotapi.requests.send.payments.SendInvoice
 import dev.inmo.tgbotapi.requests.stickers.InputSticker
+import dev.inmo.tgbotapi.types.BusinessChatId
 import dev.inmo.tgbotapi.types.ChatId
 import dev.inmo.tgbotapi.types.ChatIdWithThreadId
 import dev.inmo.tgbotapi.types.ChatIdentifier
@@ -112,6 +113,7 @@ import dev.inmo.tgbotapi.types.buttons.ReplyKeyboardMarkup
 import dev.inmo.tgbotapi.types.buttons.ReplyKeyboardRemove
 import dev.inmo.tgbotapi.types.chat.AbleToAddInAttachmentMenuChat
 import dev.inmo.tgbotapi.types.chat.Bot
+import dev.inmo.tgbotapi.types.chat.BusinessChat
 import dev.inmo.tgbotapi.types.chat.ChannelChat
 import dev.inmo.tgbotapi.types.chat.Chat
 import dev.inmo.tgbotapi.types.chat.ChatJoinRequest
@@ -119,6 +121,7 @@ import dev.inmo.tgbotapi.types.chat.ChatMessageReactionUpdated
 import dev.inmo.tgbotapi.types.chat.CommonBot
 import dev.inmo.tgbotapi.types.chat.CommonUser
 import dev.inmo.tgbotapi.types.chat.ExtendedBot
+import dev.inmo.tgbotapi.types.chat.ExtendedBusinessChat
 import dev.inmo.tgbotapi.types.chat.ExtendedChannelChat
 import dev.inmo.tgbotapi.types.chat.ExtendedChat
 import dev.inmo.tgbotapi.types.chat.ExtendedChatWithUsername
@@ -132,6 +135,7 @@ import dev.inmo.tgbotapi.types.chat.ForumChat
 import dev.inmo.tgbotapi.types.chat.GroupChat
 import dev.inmo.tgbotapi.types.chat.PossiblyPremiumChat
 import dev.inmo.tgbotapi.types.chat.PreviewBot
+import dev.inmo.tgbotapi.types.chat.PreviewBusinessChat
 import dev.inmo.tgbotapi.types.chat.PreviewChannelChat
 import dev.inmo.tgbotapi.types.chat.PreviewChat
 import dev.inmo.tgbotapi.types.chat.PreviewForumChat
@@ -1108,6 +1112,15 @@ public inline fun ChatIdentifier.chatIdWithThreadIdOrThrow(): ChatIdWithThreadId
 public inline fun <T> ChatIdentifier.ifChatIdWithThreadId(block: (ChatIdWithThreadId) -> T): T? =
     chatIdWithThreadIdOrNull() ?.let(block)
 
+public inline fun ChatIdentifier.businessChatIdOrNull(): BusinessChatId? = this as?
+    dev.inmo.tgbotapi.types.BusinessChatId
+
+public inline fun ChatIdentifier.businessChatIdOrThrow(): BusinessChatId = this as
+    dev.inmo.tgbotapi.types.BusinessChatId
+
+public inline fun <T> ChatIdentifier.ifBusinessChatId(block: (BusinessChatId) -> T): T? =
+    businessChatIdOrNull() ?.let(block)
+
 public inline fun ChatIdentifier.usernameOrNull(): Username? = this as?
     dev.inmo.tgbotapi.types.Username
 
@@ -2047,6 +2060,15 @@ public inline fun Chat.privateChatOrThrow(): PrivateChat = this as
 public inline fun <T> Chat.ifPrivateChat(block: (PrivateChat) -> T): T? = privateChatOrNull()
     ?.let(block)
 
+public inline fun Chat.businessChatOrNull(): BusinessChat? = this as?
+    dev.inmo.tgbotapi.types.chat.BusinessChat
+
+public inline fun Chat.businessChatOrThrow(): BusinessChat = this as
+    dev.inmo.tgbotapi.types.chat.BusinessChat
+
+public inline fun <T> Chat.ifBusinessChat(block: (BusinessChat) -> T): T? = businessChatOrNull()
+    ?.let(block)
+
 public inline fun Chat.publicChatOrNull(): PublicChat? = this as?
     dev.inmo.tgbotapi.types.chat.PublicChat
 
@@ -2217,6 +2239,15 @@ public inline fun Chat.extendedChatWithUsernameOrThrow(): ExtendedChatWithUserna
 public inline fun <T> Chat.ifExtendedChatWithUsername(block: (ExtendedChatWithUsername) -> T): T? =
     extendedChatWithUsernameOrNull() ?.let(block)
 
+public inline fun Chat.extendedBusinessChatOrNull(): ExtendedBusinessChat? = this as?
+    dev.inmo.tgbotapi.types.chat.ExtendedBusinessChat
+
+public inline fun Chat.extendedBusinessChatOrThrow(): ExtendedBusinessChat = this as
+    dev.inmo.tgbotapi.types.chat.ExtendedBusinessChat
+
+public inline fun <T> Chat.ifExtendedBusinessChat(block: (ExtendedBusinessChat) -> T): T? =
+    extendedBusinessChatOrNull() ?.let(block)
+
 public inline fun Chat.userOrNull(): User? = this as? dev.inmo.tgbotapi.types.chat.User
 
 public inline fun Chat.userOrThrow(): User = this as dev.inmo.tgbotapi.types.chat.User
@@ -2291,6 +2322,15 @@ public inline fun Chat.previewPrivateChatOrThrow(): PreviewPrivateChat = this as
 public inline fun <T> Chat.ifPreviewPrivateChat(block: (PreviewPrivateChat) -> T): T? =
     previewPrivateChatOrNull() ?.let(block)
 
+public inline fun Chat.previewBusinessChatOrNull(): PreviewBusinessChat? = this as?
+    dev.inmo.tgbotapi.types.chat.PreviewBusinessChat
+
+public inline fun Chat.previewBusinessChatOrThrow(): PreviewBusinessChat = this as
+    dev.inmo.tgbotapi.types.chat.PreviewBusinessChat
+
+public inline fun <T> Chat.ifPreviewBusinessChat(block: (PreviewBusinessChat) -> T): T? =
+    previewBusinessChatOrNull() ?.let(block)
+
 public inline fun Chat.previewPublicChatOrNull(): PreviewPublicChat? = this as?
     dev.inmo.tgbotapi.types.chat.PreviewPublicChat