velodrome/transform/plugins/type_filter_wrapper.go
func (t *TypeFilterWrapperPlugin) CheckFlags() error {
	if t.pullRequests && t.issues {
		return fmt.Errorf(
			"you can't ignore both pull-requests and issues")
	}
	return nil
}
func (t *TypeFilterWrapperPlugin) CheckFlags() error {
	if t.pullRequests && t.issues {
		return fmt.Errorf(
			"you can't ignore both pull-requests and issues")
	}
	return nil
}
// CheckFlags makes sure not both PR and issues are ignored