code: func (c *Client) Push(endPoint string, data interface{}) error {
  	req := c.buildRequest(endPoint, data)
  	resp, err := c.Client.Do(req)
  	if err != nil {
  		return err
  	}
  	defer resp.Body.Close()
  
  	if resp.StatusCode != http.StatusOK {
  		var errResponse errorResponse
  		dec := json.NewDecoder(resp.Body)
  		err = dec.Decode(&errResponse)
  		if err == nil {
  			return &errResponse.ErrResponse
  		}
  
  		return errors.New(resp.Status)
  	}
  
  	return nil
  }
docs: // Push pushes the data to a specific device registered with PushBullet.  The
  // 'data' parameter is marshaled to JSON and sent as the request body.  Most
  // users should call one of PusNote, PushLink, PushAddress, or PushList.