code: func (c *ApplicationService) Create(ctx context.Context, data url.Values) (*Application, error) {
  	application := new(Application)
  	err := c.client.CreateResource(ctx, applicationPathPart, data, application)
  	return application, err
  }
docs: // Create a new Application. This request must include a FriendlyName, and can
  // include these values:
  // https://www.twilio.com/docs/api/rest/applications#list-post-optional-parameters