@Test
public void testToString() {

  PagedStashCallable stash = new PagedStashCallable(null);
  PagedCallable<Integer, List<Integer>, ListIntegersPagedResponse> pagedCallable =
      new PagedCallable<>(stash, new ListIntegersPagedResponseFactory());
  Truth.assertThat(pagedCallable.toString()).contains("paged");
}