Function createMetadataKey

packages/forms/signals/src/api/rules/metadata.ts:231–237

(
  reducer?: MetadataReducer<TAcc, TWrite>,
)

  reducer: MetadataReducer<TAcc, TWrite>,
): MetadataKey<Signal<TAcc>, TWrite, TAcc>;
export function createMetadataKey<TWrite, TAcc>(
  reducer?: MetadataReducer<TAcc, TWrite>,
): MetadataKey<Signal<TAcc>, TWrite, TAcc> {
  return new (MetadataKey as new (
    reducer: MetadataReducer<TAcc, TWrite>,
  ) => MetadataKey<Signal<TAcc>, TWrite, TAcc>)(reducer ?? MetadataReducer.override<any>());
}

/**
 * Creates a metadata key that exposes a managed value based on the accumulated result of the values