code: func (c *Client) ValueDescriptorByName(name string) (value contract.ValueDescriptor, err error) {
  	conn := c.Pool.Get()
  	defer conn.Close()
  
  	value, err = valueByName(conn, name)
  	if err != nil {
  		if err == redis.ErrNil {
  			return value, db.ErrNotFound
  		}
  		return value, err
  	}
  
  	return value, nil
  }
docs: // Return a value descriptor based on the name