<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def move(name, entry_name, config=None):
 """ Move an entry to the sshconfig. """

    storm_ = get_storm_instance(config)

    try:

        if '@' in name:
            raise ValueError('invalid value: "@" cannot be used in name.')

        storm_.clone_entry(name, entry_name, keep_original=False)

        print(
            get_formatted_message(
                '{0} moved in ssh config. you can '
                'connect it by typing "ssh {0}".'.format(
                    entry_name
                ),
            'success')
        )

    except ValueError as error:
        print(get_formatted_message(error, 'error'), file=sys.stderr)
        sys.exit(1)