code: def testPackage(self):
      self.assertEqual(
          unittest_pb2.TestAllTypes.DESCRIPTOR.file.package,
          "protobuf_unittest",
      )
      desc = unittest_pb2.TestAllTypes.NestedMessage.DESCRIPTOR
      self.assertEqual(desc.file.package, "protobuf_unittest")
      self.assertEqual(
          unittest_import_pb2.ImportMessage.DESCRIPTOR.file.package,
          "protobuf_unittest_import",
      )
  
      self.assertEqual(
          unittest_pb2._FOREIGNENUM.file.package, "protobuf_unittest"
      )
      self.assertEqual(
          unittest_pb2._TESTALLTYPES_NESTEDENUM.file.package,
          "protobuf_unittest",
      )
      self.assertEqual(
          unittest_import_pb2._IMPORTENUM.file.package,
          "protobuf_unittest_import",
      )
  
imports: import unittest
  from google.protobuf.internal import test_bad_identifiers_pb2
  from google.protobuf import unittest_custom_options_pb2
  from google.protobuf import unittest_import_pb2
  from google.protobuf import unittest_import_public_pb2
  from google.protobuf import unittest_mset_pb2
  from google.protobuf import unittest_pb2
  from google.protobuf import unittest_no_generic_services_pb2
  from google.protobuf import service
label_desc: Use image node_id 13 for calling the GeneratorTest obj's underlying member method code with example usage: obj.testPackage() without return types