New message content caption; 0-getOption("message_caption_length_max") characters; pass null to remove caption.
The chat the message belongs to.
Identifier of the message. Use messageProperties.can_be_edited to check whether the message can be edited.
The new message reply markup; pass null if none; for bots only.
Optional show_Pass true to show the caption above the media; otherwise, the caption will be shown below the media. May be true only for animation, photo, and video messages.
Edits the message content caption. Returns the edited message after the edit is completed on the server side. Request type for Tdjson#editMessageCaption.