Retrieve value for a key

    CLI Example:

    .. code-block:: bash

        salt '*' memcached.get <key>

def get(key, host=DEFAULT_HOST, port=DEFAULT_PORT):
    '''
    Retrieve value for a key

    CLI Example:

    .. code-block:: bash

        salt '*' memcached.get <key>
    '''
    conn = _connect(host, port)
    _check_stats(conn)
    return conn.get(key)