return &equivalentResourceRegistry{}
}

// NewEquivalentResourceRegistryWithIdentity creates a resource mapper with a custom identity function.
// If "" is returned by the function, GroupResource#String is used as the identity.
// GroupResources with the same identity string are considered equivalent.
func NewEquivalentResourceRegistryWithIdentity(keyFunc func(schema.GroupResource) string) EquivalentResourceRegistry {

		},
	}

	for _, tc := range testcases {
		t.Run(tc.Name, func(t *testing.T) {
			mapper := NewEquivalentResourceRegistryWithIdentity(tc.IdentityFunc)

			// register
			for _, data := range kindsToRegister {
				mapper.RegisterKindFor(data.gvr, data.subresource, data.gvk)
			}
			// verify