def METHOD_NAME(self, username, message, timestamp=None):
    self.remove_user(username)
    if not timestamp:
        timestamp_format = config.sections["logging"]["log_timestamp"]
        timestamp = time.time()
        h_timestamp = time.strftime(timestamp_format)
        message = f"{h_timestamp} {message}"
    self.list_view.add_row([
        username,
        message,
        int(timestamp)
    ], select_row=False, prepend=True)