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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def set_verified(self, msg_info):
 """ expects "msg_info" to have the field 'files_containers_id' This call already executes "update_last_checked_time" so it doesn't need to be called separately """

        assert hasattr(msg_info, 'files_containers_id')
        with self._session_resource as session:
            session.execute(
                update(FilesDestinations)
                    .where(FilesDestinations.file_containers_id == msg_info.files_containers_id)
                    .values(verification_info=msg_info.msg_id)
            )

        self.update_last_checked_time(msg_info)