add ReplyKeyboardMarkup

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

@@ -461,6 +461,7 @@ const val shouldSendEmailToProviderField = "send_email_to_provider"
 const val resizeKeyboardField = "resize_keyboard"
 const val oneTimeKeyboardField = "one_time_keyboard"
 const val inputFieldPlaceholderField = "input_field_placeholder"
+const val isPersistentField = "is_persistent"
 
 const val priceDependOnShipAddressField = "is_flexible"
 

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/buttons/ReplyKeyboardMarkup.kt

@@ -13,7 +13,9 @@ data class ReplyKeyboardMarkup(
     val oneTimeKeyboard: Boolean? = null,
     @SerialName(inputFieldPlaceholderField)
     val inputFieldPlaceholder: String? = null,
-    val selective: Boolean? = null
+    val selective: Boolean? = null,
+    @SerialName(isPersistentField)
+    val persistent: Boolean? = null
 ) : KeyboardMarkup {
     init {
         if (inputFieldPlaceholder != null && inputFieldPlaceholder.length !in inputFieldPlaceholderLimit) {