code: func (c *Client) DeleteRegistrationByName(name string) error {
  	conn := c.Pool.Get()
  	defer conn.Close()
  
  	id, err := redis.String(conn.Do("HGET", db.ExportCollection+":name", name))
  	if err == redis.ErrNil {
  		return db.ErrNotFound
  	} else if err != nil {
  		return err
  	}
  
  	return deleteRegistration(conn, id)
  }
docs: // Delete a registration by name
  // UnexpectedError - problem getting in database
  // NotFound - no registration with the name was found