Synchronously save the dataset to disk

    CLI Example:

    .. code-block:: bash

        salt '*' redis.save

def save(host=None, port=None, db=None, password=None):
    '''
    Synchronously save the dataset to disk

    CLI Example:

    .. code-block:: bash

        salt '*' redis.save
    '''
    server = _connect(host, port, db, password)
    return server.save()