code: func (s *ChecksService) CreateCheckSuite(ctx context.Context, owner, repo string, opt CreateCheckSuiteOptions) (*CheckSuite, *Response, error) {
  	u := fmt.Sprintf("repos/%v/%v/check-suites", owner, repo)
  	req, err := s.client.NewRequest("POST", u, opt)
  	if err != nil {
  		return nil, nil, err
  	}
  
  	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
  
  	checkSuite := new(CheckSuite)
  	resp, err := s.client.Do(ctx, req, checkSuite)
  	if err != nil {
  		return nil, resp, err
  	}
  
  	return checkSuite, resp, nil
  }
docs: // CreateCheckSuite manually creates a check suite for a repository.
  //
  // GitHub API docs: https://developer.github.com/v3/checks/suites/#create-a-check-suite