New message content caption; pass null to remove caption; 0-getOption("message_caption_length_max") characters.
Inline message identifier.
The new message reply markup; pass null if none.
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 caption of an inline message sent via a bot; for bots only. Request type for Tdjson#editInlineMessageCaption.