code: func (client *Client) doJsonRequest(method, api string,
  	reqbody, out interface{}) error {
  	if err := client.doJsonRequestUnredacted(method, api, reqbody, out); err != nil {
  		return client.redactError(err)
  	}
  	return nil
  }
docs: // doJsonRequest is the simplest type of request: a method on a URI that
  // returns some JSON result which we unmarshal into the passed interface. It
  // wraps doJsonRequestUnredacted to redact api and application keys from
  // errors.