Returns an instance of the redis client

def _sconnect(host=None, port=None, password=None):
    '''
    Returns an instance of the redis client
    '''
    if host is None:
        host = __salt__['config.option']('redis_sentinel.host', 'localhost')
    if port is None:
        port = __salt__['config.option']('redis_sentinel.port', 26379)
    if password is None:
        password = __salt__['config.option']('redis_sentinel.password')

    return redis.StrictRedis(host, port, password=password, decode_responses=True)