Code:    http.StatusNotAcceptable,
		Reason:  metav1.StatusReason("NotAcceptable"),
		Message: e.Error(),
	}
}

// IsNotMarshalable checks the type of error, returns a boolean true if error is not nil and not marshalable false otherwise
func IsNotMarshalable(err error) bool {
	_, ok := err.(errNotMarshalable)
	return err != nil && ok
}

	}

	err1 := fmt.Errorf("a test error")

	testCases := []struct {
		obj   runtime.Object
		data  []byte
		errFn func(error) bool
	}{
		{
			obj:   &testObject{},
			errFn: protobuf.IsNotMarshalable,
		},
		{
			obj:  obj1,
			data: wire1,
		},
		{
			obj:   &testMarshalable{testObject: obj1.testObject, err: err1},
			errFn: func(err error) bool { return err == err1 },
		},
		{