The chat the message belongs to.
The new checklist. If some tasks were completed, this information will be kept.
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.
Edits the message content of a checklist. Returns the edited message after the edit is completed on the server side. Request type for Tdjson#editMessageChecklist.