code: func (c *Client) ValueDescriptorsByUomLabel(uomLabel string) (values []contract.ValueDescriptor, err error) {
  	conn := c.Pool.Get()
  	defer conn.Close()
  
  	objects, err := getObjectsByRange(conn, db.ValueDescriptorCollection+":uomlabel:"+uomLabel, 0, -1)
  	if err != nil {
  		if err != redis.ErrNil {
  			return values, err
  		}
  	}
  
  	values = make([]contract.ValueDescriptor, len(objects))
  	for i, in := range objects {
  		err = unmarshalObject(in, &values[i])
  		if err != nil {
  			return values, err
  		}
  	}
  
  	return values, nil
  }
docs: // Return value descriptors based on the unit of measure label