code: func (s *ProjectsService) GetChildProject(projectName, childProjectName string, opt *ChildProjectOptions) (*ProjectInfo, *Response, error) {
  	u := fmt.Sprintf("projects/%s/children/%s", url.QueryEscape(projectName), url.QueryEscape(childProjectName))
  
  	u, err := addOptions(u, opt)
  	if err != nil {
  		return nil, nil, err
  	}
  
  	req, err := s.client.NewRequest("GET", u, nil)
  	if err != nil {
  		return nil, nil, err
  	}
  
  	v := new(ProjectInfo)
  	resp, err := s.client.Do(req, v)
  	if err != nil {
  		return nil, resp, err
  	}
  
  	return v, resp, err
  }
docs: // GetChildProject retrieves a child project.
  // If a non-direct child project should be retrieved the parameter recursive must be set.
  //
  // Gerrit API docs: https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#get-child-project