code: func (s *APIServer) createGithubAuthRequest(auth ClientI, w http.ResponseWriter, r *http.Request, p httprouter.Params, version string) (interface{}, error) {
  	var req createGithubAuthRequestReq
  	if err := httplib.ReadJSON(r, &req); err != nil {
  		return nil, trace.Wrap(err)
  	}
  	response, err := auth.CreateGithubAuthRequest(req.Req)
  	if err != nil {
  		return nil, trace.Wrap(err)
  	}
  	return response, nil
  }
docs: /* createGithubAuthRequest creates a new request for Github OAuth2 flow
  
     POST /:version/github/requests/create
  
     Success response: services.GithubAuthRequest
  */