@Implementation
  public static GoogleApiAvailability getInstance() {
    return InstanceHolder.INSTANCE;
  }
@Test
  public void getInstance() {
    // Given the expected GoogleApiAvailability instance
    final GoogleApiAvailability expected = GoogleApiAvailability.getInstance();

    // When getting the actual one from the shadow
    final GoogleApiAvailability actual = ShadowGoogleApiAvailability.getInstance();

    // Then verify that the expected is a not null and equal to the actual one
    assertThat(expected).isEqualTo(actual);
  }