testDeserializationUnknownSymbolicEnumValue() {
    const simplified = {21: 'BARRED'};

    const serializer = new ObjectSerializer();

    assertThrows(
        'Should have an assertion failure in deserialization', /**
                                                                  @suppress {checkTypes}
                                                                  suppression
                                                                  added to
                                                                  enable type
                                                                  checking
                                                                */
        () => {
          serializer.deserialize(TestAllTypes.getDescriptor(), simplified);
        });
  }
@suppress {checkTypes}
                                                                  suppression
                                                                  added to
                                                                  enable type
                                                                  checking