type celExpression string

func (c celExpression) GetExpression() string {
	return string(c)
}

func (c celExpression) ReturnTypes() []*cel.Type {
	return []*cel.Type{cel.AnyType}
}
func generateUniqueTypeName(kind string) string {
	return fmt.Sprintf("%s%d", kind, time.Now().Nanosecond())
}

func (c *TypeChecker) declType(gvk schema.GroupVersionKind) (*apiservercel.DeclType, error) {
	if gvk.Empty() {