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

Deletes all messages sent by the specified message sender in a chat. Supported only for supergroups; requires can_delete_messages administrator privileges. Returns object_ptr<Ok>.

NameTypeDescription
chat_idstringChat identifier.
sender_idMessageSenderIdentifier of the sender of messages to delete.

More details on telegram's documentation.