code: func CheckContext(ctx context.Context, appID string, opts Options) (Response, error) {
  	var req, err = checkRequest(appID, &opts)
  
  	if err != nil {
  		return Response{}, err
  	}
  
  	return doCheckRequest(opts, req.WithContext(ctx))
  }
docs: // CheckContext is like Check but includes a context.