code: func (s *AppsService) FindOrganizationInstallation(ctx context.Context, org string) (*Installation, *Response, error) {
  	return s.getInstallation(ctx, fmt.Sprintf("orgs/%v/installation", org))
  }
docs: // FindOrganizationInstallation finds the organization's installation information.
  //
  // GitHub API docs: https://developer.github.com/v3/apps/#find-organization-installation