message: fix: google3 sync which requires type hints
  PR Close
diff: @@ -477,7 +477,7 @@ export class HttpClient {
  if (options.params instanceof HttpParams) {
  params = options.params;
  } else {
  - params = new HttpParams({fromObject: options.params});
  + params = new HttpParams({ fromObject: options.params } as HttpParamsOptions);
  }
  }
  