func RegisterDecompressor(method uint16, dcomp Decompressor) {
	if _, dup := decompressors.LoadOrStore(method, dcomp); dup {
		panic("decompressor already registered")
	}
}

// RegisterCompressor registers custom compressors for a specified method ID.
// The common methods [Store] and [Deflate] are built in.
func RegisterCompressor(method uint16, comp Compressor) {
	if _, dup := compressors.LoadOrStore(method, comp); dup {

    registry.register(new ObjectSubscriber());
    assertEquals(3, Iterators.size(registry.getSubscribers("")));
    assertEquals(1, Iterators.size(registry.getSubscribers(new Object())));
    assertEquals(1, Iterators.size(registry.getSubscribers(1)));

    registry.register(new IntegerSubscriber());
    assertEquals(3, Iterators.size(registry.getSubscribers("")));

    registry.register(new ObjectSubscriber());
    assertEquals(3, Iterators.size(registry.getSubscribers("")));
    assertEquals(1, Iterators.size(registry.getSubscribers(new Object())));
    assertEquals(1, Iterators.size(registry.getSubscribers(1)));

    registry.register(new IntegerSubscriber());
    assertEquals(3, Iterators.size(registry.getSubscribers("")));

	VPGATHERQQ Y2, (BP)(X2*2), Y2   // ERROR "mask, index, and destination registers should be distinct"
	VPGATHERQQ Y2, (BP)(X2*2), Y7   // ERROR "mask, index, and destination registers should be distinct"
	VPGATHERQQ Y2, (BP)(X7*2), Y2   // ERROR "mask, index, and destination registers should be distinct"
	VPGATHERQQ Y7, (BP)(X2*2), Y2   // ERROR "mask, index, and destination registers should be distinct"

//   // More complex gradient functions can use inputs/attrs etc. from the
//   // forward `op`.
//   return new AddGradientFunction;
// }
//
// Status RegisterGradients(GradientRegistry* registry) {
//   return registry->Register("Add", AddRegisterer);
// }
class GradientFunction {
 public:
  virtual absl::Status Compute(
      AbstractContext* ctx,
      absl::Span<AbstractTensorHandle* const> grad_outputs,

 */
@Experimental
@Consumer
public interface ExtensibleEnumProvider<T extends ExtensibleEnum> extends SpiService {

    /**
     * Registers new values for the T extensible enum.
     *
     * @return a collection of T instances to register
     */
    @Nonnull
    Collection<T> provides();

	createCallback.Match(enableTransaction).Register("gorm:begin_transaction", BeginTransaction)
	createCallback.Register("gorm:before_create", BeforeCreate)
	createCallback.Register("gorm:save_before_associations", SaveBeforeAssociations(true))
	createCallback.Register("gorm:create", Create(config))
	createCallback.Register("gorm:save_after_associations", SaveAfterAssociations(true))
	createCallback.Register("gorm:after_create", AfterCreate)

func TestCallbacksRemove(t *testing.T) {
	db, _ := gorm.Open(nil, nil)
	createCallback := db.Callback().Create()

	createCallback.Before("*").Register("c1", c1)
	createCallback.After("*").Register("c2", c2)
	createCallback.Before("c4").Register("c3", c3)
	createCallback.After("c2").Register("c4", c4)

	// callbacks: []string{"c1", "c3", "c4", "c2"}
	createCallback.Remove("c1")

	"istioNamespace":      env.Register("ISTIOCTL_ISTIONAMESPACE", constants.IstioSystemNamespace, "The istioctl --istioNamespace override"),
	"xds-address":         env.Register("ISTIOCTL_XDS_ADDRESS", "", "The istioctl --xds-address override"),
	"xds-port":            env.Register("ISTIOCTL_XDS_PORT", 15012, "The istioctl --xds-port override"),
	"authority":           env.Register("ISTIOCTL_AUTHORITY", "", "The istioctl --authority override"),

  ) {
    access.registerAsUsed(java)
    RuntimeReflection.register(java)
    java.constructors.forEach {
      RuntimeReflection.register(it)
    }
    java.declaredMethods.forEach {
      RuntimeReflection.register(it)
    }
    java.declaredFields.forEach {
      RuntimeReflection.register(it)
    }
    java.methods.forEach {
      RuntimeReflection.register(it)
    }
  }