code: func (s *GroupsService) GetGroupDetail(groupID string) (*GroupInfo, *Response, error) {
  	u := fmt.Sprintf("groups/%s/detail", groupID)
  	return s.getGroupInfoResponse(u)
  }
docs: // GetGroupDetail retrieves a group with the direct members and the directly included groups.
  //
  // Gerrit API docs: https://gerrit-review.googlesource.com/Documentation/rest-api-groups.html#get-group-detail