diff --git a/CHANGELOG.md b/CHANGELOG.md
index 77d6445d2e..20e22e133d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # TelegramBotAPI changelog
 
+## 0.33.4
+
+* `Common`:
+    * `Version`:
+        * `uuid`: `0.2.3` -> `0.2.4`
+        * `MicroUtils`: `0.4.33` -> `0.4.35`
+* `Core`:
+    * All `TextSource` implementators have become `Serializable`
+        * New serializer `TextSourceSerializer`
+    * Interface`FromUserMessage` now extends `Message`
+    * New interface `FromUser`
+        * Interface `FromUserMessage` now extends `FromUser`
+* `Extensions Utils`
+    * Fixes in `parseCommandsWithParams`
+
 ## 0.33.3
 
 * `Common`:
diff --git a/build.gradle b/build.gradle
index 84867b4dad..1e47f88a68 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,6 +18,17 @@ plugins {
     id "org.jetbrains.kotlin.plugin.serialization" version "$kotlin_version" apply false
 }
 
+// temporal crutch until legacy tests will be stabled or legacy target will be removed
+allprojects {
+    if (it != rootProject.findProject("docs")) {
+        tasks.whenTaskAdded { task ->
+            if(task.name == "jsLegacyBrowserTest" || task.name == "jsLegacyNodeTest") {
+                task.enabled = false
+            }
+        }
+    }
+}
+
 private String getCurrentVersionChangelog() {
     OutputStream changelogDataOS = new ByteArrayOutputStream()
     exec {
diff --git a/gradle.properties b/gradle.properties
index dff1d0b1aa..a74e4d5857 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -9,14 +9,14 @@ kotlin_version=1.4.32
 kotlin_coroutines_version=1.4.3
 kotlin_serialisation_runtime_version=1.1.0
 klock_version=2.0.7
-uuid_version=0.2.3
+uuid_version=0.2.4
 ktor_version=1.5.3
 
-micro_utils_version=0.4.33
+micro_utils_version=0.4.35
 
 javax_activation_version=1.1.1
 
 library_group=dev.inmo
-library_version=0.33.3
+library_version=0.33.4
 
 github_release_plugin_version=2.2.12
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index f2e1eb1fd4..68ca99ac45 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.3-bin.zip
diff --git a/tgbotapi.core/build.gradle b/tgbotapi.core/build.gradle
index ff1a823d33..5c01929c53 100644
--- a/tgbotapi.core/build.gradle
+++ b/tgbotapi.core/build.gradle
@@ -52,6 +52,7 @@ kotlin {
                 api "dev.inmo:micro_utils.coroutines:$micro_utils_version"
                 api "dev.inmo:micro_utils.serialization.base64:$micro_utils_version"
                 api "dev.inmo:micro_utils.serialization.encapsulator:$micro_utils_version"
+                api "dev.inmo:micro_utils.serialization.typed_serializer:$micro_utils_version"
 
                 api "io.ktor:ktor-client-core:$ktor_version"
             }
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/CommonAbstracts/FromUser.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/CommonAbstracts/FromUser.kt
new file mode 100644
index 0000000000..d45e65b52f
--- /dev/null
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/CommonAbstracts/FromUser.kt
@@ -0,0 +1,7 @@
+package dev.inmo.tgbotapi.CommonAbstracts
+
+import dev.inmo.tgbotapi.types.User
+
+interface FromUser {
+    val user: User
+}
\ No newline at end of file
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/CommonAbstracts/TextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/CommonAbstracts/TextSource.kt
index 06481a6ebe..05590f49b4 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/CommonAbstracts/TextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/CommonAbstracts/TextSource.kt
@@ -1,14 +1,17 @@
 package dev.inmo.tgbotapi.CommonAbstracts
 
+import dev.inmo.tgbotapi.types.MessageEntity.textsources.TextSourceSerializer
 import dev.inmo.tgbotapi.types.MessageEntity.textsources.regular
 import dev.inmo.tgbotapi.types.MessageEntity.toTextParts
 import dev.inmo.tgbotapi.types.captionLength
 import dev.inmo.tgbotapi.types.textLength
+import kotlinx.serialization.Serializable
 
 const val DirectInvocationOfTextSourceConstructor = "It is strongly not recommended to use constructors directly instead of factory methods"
 
 typealias TextSourcesList = List<TextSource>
 
+@Serializable(TextSourceSerializer::class)
 interface TextSource {
     val markdown: String
     val markdownV2: String
@@ -17,6 +20,10 @@ interface TextSource {
 
     val asText: String
         get() = source
+
+    companion object {
+        fun serializer() = TextSourceSerializer
+    }
 }
 
 @Suppress("NOTHING_TO_INLINE")
@@ -28,8 +35,13 @@ inline operator fun TextSource.plus(text: String) = listOf(this, regular(text))
 @Suppress("NOTHING_TO_INLINE")
 inline operator fun List<TextSource>.plus(text: String) = this + regular(text)
 
+@Serializable(TextSourceSerializer::class)
 interface MultilevelTextSource : TextSource {
     val subsources: List<TextSource>
+
+    companion object {
+        fun serializer() = TextSourceSerializer
+    }
 }
 
 data class TextPart(
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/BoldTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/BoldTextSource.kt
index 83223e01cb..b577bc040f 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/BoldTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/BoldTextSource.kt
@@ -3,10 +3,13 @@ package dev.inmo.tgbotapi.types.MessageEntity.textsources
 import dev.inmo.tgbotapi.CommonAbstracts.*
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
 
 /**
  * @see bold
  */
+@Serializable
 data class BoldTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String,
     override val subsources: List<TextSource>
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/BotCommandTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/BotCommandTextSource.kt
index 83d00409a0..8b3f90403d 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/BotCommandTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/BotCommandTextSource.kt
@@ -4,12 +4,14 @@ import dev.inmo.tgbotapi.CommonAbstracts.DirectInvocationOfTextSourceConstructor
 import dev.inmo.tgbotapi.CommonAbstracts.TextSource
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 private val commandRegex = Regex("[/!][^@\\s]*")
 
 /**
  * @see botCommand
  */
+@Serializable
 data class BotCommandTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String
 ) : TextSource {
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/CashTagTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/CashTagTextSource.kt
index eb80cbf655..cabb84237d 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/CashTagTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/CashTagTextSource.kt
@@ -3,10 +3,12 @@ package dev.inmo.tgbotapi.types.MessageEntity.textsources
 import dev.inmo.tgbotapi.CommonAbstracts.*
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see cashTag
  */
+@Serializable
 data class CashTagTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String,
     override val subsources: List<TextSource>
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/CodeTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/CodeTextSource.kt
index e71c556e9e..e96dc0f45c 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/CodeTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/CodeTextSource.kt
@@ -4,10 +4,12 @@ import dev.inmo.tgbotapi.CommonAbstracts.DirectInvocationOfTextSourceConstructor
 import dev.inmo.tgbotapi.CommonAbstracts.TextSource
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see code
  */
+@Serializable
 data class CodeTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String
 ) : TextSource {
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/EMailTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/EMailTextSource.kt
index 83311b871e..515d8dd343 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/EMailTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/EMailTextSource.kt
@@ -3,10 +3,12 @@ package dev.inmo.tgbotapi.types.MessageEntity.textsources
 import dev.inmo.tgbotapi.CommonAbstracts.*
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see email
  */
+@Serializable
 data class EMailTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String,
     override val subsources: List<TextSource>
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/HashTagTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/HashTagTextSource.kt
index 3b33b8faf0..506bc6a584 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/HashTagTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/HashTagTextSource.kt
@@ -3,10 +3,12 @@ package dev.inmo.tgbotapi.types.MessageEntity.textsources
 import dev.inmo.tgbotapi.CommonAbstracts.*
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see hashtag
  */
+@Serializable
 data class HashTagTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String,
     override val subsources: List<TextSource>
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/ItalicTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/ItalicTextSource.kt
index e72ed0b357..61bb66bde3 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/ItalicTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/ItalicTextSource.kt
@@ -3,10 +3,12 @@ package dev.inmo.tgbotapi.types.MessageEntity.textsources
 import dev.inmo.tgbotapi.CommonAbstracts.*
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see italic
  */
+@Serializable
 data class ItalicTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String,
     override val subsources: List<TextSource>
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/MentionTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/MentionTextSource.kt
index 288a191773..0dce181677 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/MentionTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/MentionTextSource.kt
@@ -3,6 +3,7 @@ package dev.inmo.tgbotapi.types.MessageEntity.textsources
 import dev.inmo.tgbotapi.CommonAbstracts.*
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 private val String.withoutCommercialAt
     get() = if (startsWith("@")) {
@@ -14,6 +15,7 @@ private val String.withoutCommercialAt
 /**
  * @see mention
  */
+@Serializable
 data class MentionTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String,
     override val subsources: List<TextSource>
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/PhoneNumberTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/PhoneNumberTextSource.kt
index e17c1ec716..ae1ef0239f 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/PhoneNumberTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/PhoneNumberTextSource.kt
@@ -3,10 +3,12 @@ package dev.inmo.tgbotapi.types.MessageEntity.textsources
 import dev.inmo.tgbotapi.CommonAbstracts.*
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see phone
  */
+@Serializable
 data class PhoneNumberTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String,
     override val subsources: List<TextSource>
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/PreTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/PreTextSource.kt
index e22910e0f1..a29ce643ea 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/PreTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/PreTextSource.kt
@@ -4,10 +4,12 @@ import dev.inmo.tgbotapi.CommonAbstracts.DirectInvocationOfTextSourceConstructor
 import dev.inmo.tgbotapi.CommonAbstracts.TextSource
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see pre
  */
+@Serializable
 data class PreTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String,
     val language: String? = null
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/RegularTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/RegularTextSource.kt
index e880d6e2ba..18c69aafd9 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/RegularTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/RegularTextSource.kt
@@ -4,10 +4,12 @@ import dev.inmo.tgbotapi.CommonAbstracts.DirectInvocationOfTextSourceConstructor
 import dev.inmo.tgbotapi.CommonAbstracts.TextSource
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see regular
  */
+@Serializable
 data class RegularTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String
 ) : TextSource {
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/StrikethroughTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/StrikethroughTextSource.kt
index 524f3ca1a1..a6c32d4302 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/StrikethroughTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/StrikethroughTextSource.kt
@@ -3,10 +3,12 @@ package dev.inmo.tgbotapi.types.MessageEntity.textsources
 import dev.inmo.tgbotapi.CommonAbstracts.*
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see strikethrough
  */
+@Serializable
 data class StrikethroughTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String,
     override val subsources: List<TextSource>
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/TextLinkTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/TextLinkTextSource.kt
index c6170764fd..3e3faa5430 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/TextLinkTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/TextLinkTextSource.kt
@@ -4,10 +4,12 @@ import dev.inmo.tgbotapi.CommonAbstracts.DirectInvocationOfTextSourceConstructor
 import dev.inmo.tgbotapi.CommonAbstracts.TextSource
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see link
  */
+@Serializable
 data class TextLinkTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String,
     val url: String
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/TextMentionTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/TextMentionTextSource.kt
index 4587b20597..2bb5c59261 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/TextMentionTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/TextMentionTextSource.kt
@@ -4,10 +4,12 @@ import dev.inmo.tgbotapi.CommonAbstracts.*
 import dev.inmo.tgbotapi.types.*
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see mention
  */
+@Serializable
 data class TextMentionTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String,
     val user: User,
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/TextSourceSerializer.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/TextSourceSerializer.kt
new file mode 100644
index 0000000000..a9f76a93ad
--- /dev/null
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/TextSourceSerializer.kt
@@ -0,0 +1,43 @@
+package dev.inmo.tgbotapi.types.MessageEntity.textsources
+
+import dev.inmo.micro_utils.serialization.typed_serializer.TypedSerializer
+import dev.inmo.tgbotapi.CommonAbstracts.TextSource
+import dev.inmo.tgbotapi.CommonAbstracts.justTextSources
+import dev.inmo.tgbotapi.types.MessageEntity.*
+import dev.inmo.tgbotapi.types.MessageEntity.RawMessageEntities
+import dev.inmo.tgbotapi.utils.RiskFeature
+import kotlinx.serialization.*
+import kotlinx.serialization.builtins.serializer
+import kotlinx.serialization.descriptors.*
+import kotlinx.serialization.encoding.*
+
+private val baseSerializers: Map<String, KSerializer<out TextSource>> = mapOf(
+    "regular" to RegularTextSource.serializer(),
+    "text_link" to TextLinkTextSource.serializer(),
+    "code" to CodeTextSource.serializer(),
+    "url" to URLTextSource.serializer(),
+    "pre" to PreTextSource.serializer(),
+    "bot_command" to BotCommandTextSource.serializer(),
+    "strikethrough" to StrikethroughTextSource.serializer(),
+    "italic" to ItalicTextSource.serializer(),
+    "bold" to BoldTextSource.serializer(),
+    "email" to EMailTextSource.serializer(),
+    "underline" to UnderlineTextSource.serializer(),
+    "mention" to MentionTextSource.serializer(),
+    "phone_number" to PhoneNumberTextSource.serializer(),
+    "text_mention" to TextMentionTextSource.serializer(),
+    "hashtag" to HashTagTextSource.serializer(),
+    "cashtag" to CashTagTextSource.serializer(),
+)
+
+object TextSourceSerializer : TypedSerializer<TextSource>(TextSource::class, baseSerializers) {
+    override fun <T: TextSource> include(type: String, serializer: KSerializer<T>) {
+        require(type !in baseSerializers.keys)
+        super.include(type, serializer)
+    }
+
+    override fun exclude(type: String) {
+        require(type !in baseSerializers.keys)
+        super.exclude(type)
+    }
+}
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/URLTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/URLTextSource.kt
index cf84858378..cdfeb3d097 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/URLTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/URLTextSource.kt
@@ -4,10 +4,12 @@ import dev.inmo.tgbotapi.CommonAbstracts.DirectInvocationOfTextSourceConstructor
 import dev.inmo.tgbotapi.CommonAbstracts.TextSource
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see link
  */
+@Serializable
 data class URLTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String
 ) : TextSource {
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/UnderlineTextSource.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/UnderlineTextSource.kt
index febc609a9d..b8f3f10510 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/UnderlineTextSource.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/MessageEntity/textsources/UnderlineTextSource.kt
@@ -3,10 +3,12 @@ package dev.inmo.tgbotapi.types.MessageEntity.textsources
 import dev.inmo.tgbotapi.CommonAbstracts.*
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.*
+import kotlinx.serialization.Serializable
 
 /**
  * @see underline
  */
+@Serializable
 data class UnderlineTextSource @RiskFeature(DirectInvocationOfTextSourceConstructor) constructor (
     override val source: String,
     override val subsources: List<TextSource>
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/abstracts/FromUserMessage.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/abstracts/FromUserMessage.kt
index 5852ffb5d8..50255f0cb4 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/abstracts/FromUserMessage.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/abstracts/FromUserMessage.kt
@@ -1,7 +1,5 @@
 package dev.inmo.tgbotapi.types.message.abstracts
 
-import dev.inmo.tgbotapi.types.User
+import dev.inmo.tgbotapi.CommonAbstracts.FromUser
 
-interface FromUserMessage {
-    val user: User
-}
\ No newline at end of file
+interface FromUserMessage : FromUser, Message
diff --git a/tgbotapi.core/src/commonTest/kotlin/dev/inmo/tgbotapi/types/TextSourcesTests.kt b/tgbotapi.core/src/commonTest/kotlin/dev/inmo/tgbotapi/types/TextSourcesTests.kt
new file mode 100644
index 0000000000..1dd7e893ef
--- /dev/null
+++ b/tgbotapi.core/src/commonTest/kotlin/dev/inmo/tgbotapi/types/TextSourcesTests.kt
@@ -0,0 +1,40 @@
+package dev.inmo.tgbotapi.types
+
+import dev.inmo.tgbotapi.CommonAbstracts.TextSource
+import dev.inmo.tgbotapi.CommonAbstracts.makeString
+import dev.inmo.tgbotapi.TestsJsonFormat
+import dev.inmo.tgbotapi.extensions.utils.formatting.*
+import dev.inmo.tgbotapi.types.MessageEntity.textsources.TextSourceSerializer
+import kotlinx.serialization.PolymorphicSerializer
+import kotlinx.serialization.builtins.ListSerializer
+import kotlinx.serialization.encodeToString
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class TextSourcesTests {
+    @Test
+    fun testThatTextSourcesSerializedCorrectly() {
+        val testList = buildEntities {
+            bold(
+                buildEntities {
+                    italic("It")
+                    regular(" ")
+                    link("is example", "https://is.example")
+                }
+            )
+            regular(" ")
+            underline("of")
+            regular(" ")
+            strikethrough("complex")
+            regular(" ")
+            pre("text", "kotlin")
+        }
+        val serialized = TestsJsonFormat.encodeToString(ListSerializer(TextSource.serializer()), testList)
+        val deserialized = TestsJsonFormat.decodeFromString(
+            ListSerializer(TextSource.serializer()),
+            serialized
+        )
+        assertEquals(testList, deserialized)
+        assertEquals(testList.makeString(), deserialized.makeString())
+    }
+}
\ No newline at end of file
diff --git a/tgbotapi.extensions.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/ClassCasts.kt b/tgbotapi.extensions.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/ClassCasts.kt
index 999f165c15..21fc99db2e 100644
--- a/tgbotapi.extensions.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/ClassCasts.kt
+++ b/tgbotapi.extensions.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/ClassCasts.kt
@@ -513,6 +513,10 @@ inline fun Message.asPossiblySentViaBotCommonMessage(): PossiblySentViaBotCommon
 @PreviewFeature
 inline fun Message.requirePossiblySentViaBotCommonMessage(): PossiblySentViaBotCommonMessage<MessageContent> = this as PossiblySentViaBotCommonMessage<MessageContent>
 @PreviewFeature
+inline fun Message.asFromUserMessage(): FromUserMessage? = this as? FromUserMessage
+@PreviewFeature
+inline fun Message.requireFromUserMessage(): FromUserMessage = this as FromUserMessage
+@PreviewFeature
 inline fun BotAction.asFindLocationAction(): FindLocationAction? = this as? FindLocationAction
 @PreviewFeature
 inline fun BotAction.requireFindLocationAction(): FindLocationAction = this as FindLocationAction
diff --git a/tgbotapi.extensions.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/extensions/TextCaptionBotCommandsParser.kt b/tgbotapi.extensions.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/extensions/TextCaptionBotCommandsParser.kt
index 86a63efb23..61eed8ef21 100644
--- a/tgbotapi.extensions.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/extensions/TextCaptionBotCommandsParser.kt
+++ b/tgbotapi.extensions.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/extensions/TextCaptionBotCommandsParser.kt
@@ -18,8 +18,11 @@ fun List<TextSource>.parseCommandsWithParams(
     var currentBotCommandSource: BotCommandTextSource? = null
     var currentArgs = ""
     fun includeCurrent() = currentBotCommandSource ?.let {
-        result[it.command] = currentArgs.split(argsSeparator).toTypedArray()
-        currentArgs = ""
+        currentArgs = currentArgs.trim()
+        if (currentArgs.isNotEmpty()) {
+            result[it.command] = currentArgs.split(argsSeparator).toTypedArray()
+            currentArgs = ""
+        }
     }
     for (textSource in this) {
         if (textSource is BotCommandTextSource) {