code: func (c *Client) Cancel(id string) (*CancellationResponse, error) {
  	cancelResp := &CancellationResponse{}
  	resp, err := c.caller.Call("DELETE", c.endpoint+"/opengdpr_requests/"+id, nil)
  	return cancelResp, c.json(resp, err, true, cancelResp)
  }
docs: // Cancel cancels an existing GDPR request.