code: func (s *OrganizationsService) ListAll(ctx context.Context, opt *OrganizationsListOptions) ([]*Organization, *Response, error) {
  	u, err := addOptions("organizations", opt)
  	if err != nil {
  		return nil, nil, err
  	}
  
  	req, err := s.client.NewRequest("GET", u, nil)
  	if err != nil {
  		return nil, nil, err
  	}
  
  	orgs := []*Organization{}
  	resp, err := s.client.Do(ctx, req, &orgs)
  	if err != nil {
  		return nil, resp, err
  	}
  	return orgs, resp, nil
  }
docs: // ListAll lists all organizations, in the order that they were created on GitHub.
  //
  // Note: Pagination is powered exclusively by the since parameter. To continue
  // listing the next set of organizations, use the ID of the last-returned organization
  // as the opts.Since parameter for the next call.
  //
  // GitHub API docs: https://developer.github.com/v3/orgs/#list-all-organizations