// resource and the scale subresource
type ScaleHandler struct {
	parentEntries []metav1.ManagedFieldsEntry
	groupVersion  schema.GroupVersion
	mappings      ResourcePathMappings
}

// NewScaleHandler creates a new ScaleHandler
func NewScaleHandler(parentEntries []metav1.ManagedFieldsEntry, groupVersion schema.GroupVersion, mappings ResourcePathMappings) *ScaleHandler {
	return &ScaleHandler{
		parentEntries: parentEntries,

					FieldsType: "FieldsV1",
					FieldsV1:   &metav1.FieldsV1{Raw: []byte(`{"f:spec":{"f:replicas":{}}}`)},
				},
			},
			expected: nil,
		},
	}

	for _, test := range tests {
		handler := NewScaleHandler(
			test.input,
			schema.GroupVersion{Group: "apps", Version: "v1"},
			defaultMappings(),
		)
		subresourceEntries, err := handler.ToSubresource()
		if err != nil {

			groupVersion = requestGroupVersion
		} else {
			klog.Fatalf("Unrecognized group/version in request info %q", requestGroupVersion.String())
		}
	}

	managedFieldsHandler := managedfields.NewScaleHandler(
		replicationcontroller.ManagedFields,
		groupVersion,
		replicasPathInReplicationController,
	)

	// replicationcontroller -> old scale
	oldScale := scaleFromRC(replicationcontroller)

			groupVersion = requestGroupVersion
		} else {
			klog.Fatalf("Unrecognized group/version in request info %q", requestGroupVersion.String())
		}
	}

	managedFieldsHandler := managedfields.NewScaleHandler(
		replicaset.ManagedFields,
		groupVersion,
		replicasPathInReplicaSet,
	)

	// replicaset -> old scale
	oldScale, err := scaleFromReplicaSet(replicaset)
	if err != nil {
		return nil, err

	cr := oldObj.DeepCopyObject().(*unstructured.Unstructured)
	const invalidSpecReplicas = -2147483648 // smallest int32

	managedFieldsHandler := managedfields.NewScaleHandler(
		cr.GetManagedFields(),
		i.parentGV,
		i.replicasPathMapping,
	)

	oldScale, replicasFound, err := scaleFromCustomResource(cr, i.specReplicasPath, i.statusReplicasPath, i.labelSelectorPath)

			groupVersion = requestGroupVersion
		} else {
			klog.Fatalf("Unrecognized group/version in request info %q", requestGroupVersion.String())
		}
	}

	managedFieldsHandler := managedfields.NewScaleHandler(
		statefulset.ManagedFields,
		groupVersion,
		replicasPathInStatefulSet,
	)

	// statefulset -> old scale
	oldScale, err := scaleFromStatefulSet(statefulset)
	if err != nil {
		return nil, err

			groupVersion = requestGroupVersion
		} else {
			klog.Fatalf("Unrecognized group/version in request info %q", requestGroupVersion.String())
		}
	}

	managedFieldsHandler := managedfields.NewScaleHandler(
		deployment.ManagedFields,
		groupVersion,
		replicasPathInDeployment,
	)

	// deployment -> old scale
	oldScale, err := scaleFromDeployment(deployment)
	if err != nil {
		return nil, err