nestedFieldType, found := rt.FindFieldType("CustomObject", "nested")
	if !found {
		t.Fatal("got field not found for 'CustomObject.nested', wanted found")
	}
	if nestedFieldType.Type.GetMessageType() != "CustomObject.nested" {
		t.Errorf("got field type %v, wanted mock_template.nested", nestedFieldType.Type)
	}
	subnameFieldType, found := rt.FindFieldType("CustomObject.nested", "subname")
	if !found {

// concessions were made to align with the existing CEL interfaces.
func (rt *DeclTypeProvider) FindFieldType(typeName, fieldName string) (*ref.FieldType, bool) {
	st, found := rt.findDeclType(typeName)
	if !found {
		return rt.typeProvider.FindFieldType(typeName, fieldName)
	}

	f, found := st.Fields[fieldName]
	if found {
		ft := f.Type
		expT, err := ft.ExprType()