Function getter

packages/context/src/inject.ts:271–283

(
    bindingSelector: BindingSelector<unknown>,
    metadata?: InjectionMetadata,
  )

   * @param metadata - Optional metadata to help the injection
   */
  export const getter = function injectGetter(
    bindingSelector: BindingSelector<unknown>,
    metadata?: InjectionMetadata,
  ) {
    metadata = Object.assign({decorator: '@inject.getter'}, metadata);
    return inject(
      bindingSelector,
      metadata,
      isBindingAddress(bindingSelector)
        ? resolveAsGetter
        : resolveAsGetterByFilter,
    );
  };

  /**
   * Inject a function for setting (binding) the given key to a given