|sender\_user\_id|[int](../types/int.md) | Yes|Identifier of the user who sent the message, 0 if unknown. It can be unknown for channel posts which are not signed by the author|
|send\_state|[MessageSendState](../types/MessageSendState.md) | Yes|Information about sending state of the message|
|can\_be\_edited|[Bool](../types/Bool.md) | Yes|True, if message can be edited|
|can\_be\_deleted|[Bool](../types/Bool.md) | Yes|True, if message can be deleted|
|is\_post|[Bool](../types/Bool.md) | Yes|True, if message is channel post. All messages to broadcast channels are posts, all other messages are not posts|
|date|[int](../types/int.md) | Yes|Date when message was sent, unix time|
|edit\_date|[int](../types/int.md) | Yes|Date when message was edited last time, unix time|
|forward\_info|[MessageForwardInfo](../types/MessageForwardInfo.md) | Yes|Information about initial message sender, nullable|
|reply\_to\_message\_id|[long](../types/long.md) | Yes|If non-zero, identifier of the message this message replies to, can be identifier of deleted message|
|ttl|[int](../types/int.md) | Yes|Message TTL for messages in secret chats in seconds, 0 if none. TDLib will send updateDeleteMessages when TTL expires|
|ttl\_expires\_in|[double](../types/double.md) | Yes|Time left for message ttl to expire in seconds|
|via\_bot\_user\_id|[int](../types/int.md) | Yes|If non-zero, user identifier of the bot this message is sent via|
|views|[int](../types/int.md) | Yes|Number of times this message was viewed|
|content|[MessageContent](../types/MessageContent.md) | Yes|Content of the message|
|reply\_markup|[ReplyMarkup](../types/ReplyMarkup.md) | Yes|Reply markup for the message, nullable|
