View Source ExTDLib.Method.EditMessageSchedulingState (ExTDLib v0.0.4)

Edits the time when a scheduled message will be sent. Scheduling state of all messages in the same album or forwarded together with the message will be also changed. Returns object_ptr<Ok>.

NameTypeDescription
chat_idstringThe chat the message belongs to.
message_idstringIdentifier of the message.
scheduling_stateMessageSchedulingStateThe new message scheduling state; pass null to send the message immediately.

More details on telegram's documentation.