code: func (c *Client) CollaboratorDelete(appIdentity string, collaboratorIdentity string) error {
  	return c.Delete("/apps/" + appIdentity + "/collaborators/" + collaboratorIdentity)
  }
docs: // Delete an existing collaborator.
  //
  // appIdentity is the unique identifier of the Collaborator's App.
  // collaboratorIdentity is the unique identifier of the Collaborator.