code: def testFileDescriptor(self):
      self.assertEqual(self.my_file.name, "some/filename/some.proto")
      self.assertEqual(self.my_file.package, "protobuf_unittest")
  
imports: import unittest
  from google.protobuf import unittest_custom_options_pb2
  from google.protobuf import unittest_import_pb2
  from google.protobuf import unittest_pb2
  from google.protobuf import descriptor_pb2
  from google.protobuf import descriptor
  from google.protobuf import text_format
label_desc: Use image node_id 13 for calling the DescriptorTest obj's underlying member method code with example usage: obj.testFileDescriptor() without return types