[V] $lib

const $lib: TypeSpecLibrary<{
  "circular-parent-resource": {
     default: CallableMessage<["cycle"]>;
  };
  "duplicate-key": {
     default: CallableMessage<["resourceName"]>;
  };
  "duplicate-parent-key": {
     default: CallableMessage<["resourceName", "keyName"]>;
  };
  "invalid-action-name": {
     default: "Action name cannot be empty string.";
  };
  "not-key-type": {
     default: "Cannot copy keys from a non-key type (KeysOf<T> or ParentKeysOf<T>)";
  };
  "resource-missing-error": {
     default: CallableMessage<["modelName"]>;
  };
  "resource-missing-key": {
     default: CallableMessage<["modelName"]>;
  };
  "shared-route-unspecified-action-name": {
     default: CallableMessage<["decoratorName"]>;
  };
}, Record<string, any>, never>;

REST library definition, including its diagnostic messages and program state helpers.