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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 stop_apppool(name):
    '''
    Stop an IIS application pool.

    .. versionadded:: 2017.7.0

    Args:
        name (str): The name of the App Pool to stop.

    Returns:
        bool: True if successful, otherwise False

    CLI Example:

    .. code-block:: bash

        salt '*' win_iis.stop_apppool name='MyTestPool'
    '''
    ps_cmd = ['Stop-WebAppPool', r"'{0}'".format(name)]

    cmd_ret = _srvmgr(ps_cmd)

    return cmd_ret['retcode'] == 0