Exit configuration mode.

def exit_config_mode(self, exit_config="exit configuration-mode"):
        """Exit configuration mode."""
        output = ""
        if self.check_config_mode():
            output = self.send_command_timing(
                exit_config, strip_prompt=False, strip_command=False
            )
            # if 'Exit with uncommitted changes?' in output:
            if "uncommitted changes" in output:
                output += self.send_command_timing(
                    "yes", strip_prompt=False, strip_command=False
                )
            if self.check_config_mode():
                raise ValueError("Failed to exit configuration mode")
        return output