code: def testGetPrototype(self):
      instance = self._Database().GetPrototype(
          unittest_pb2.TestAllTypes.DESCRIPTOR
      )
      self.assertTrue(instance is unittest_pb2.TestAllTypes)
  
file_path: turicreate/src/external/coremltools_wrap/coremltools/deps/protobuf/python/google/protobuf/internal/symbol_database_test.py
imports: from google.protobuf import unittest_pb2
  from google.protobuf import descriptor
  from google.protobuf import descriptor_pool
  from google.protobuf import symbol_database
label_desc: Use image node_id 2 for calling the SymbolDatabaseTest obj's underlying member method code with example usage: obj.testGetPrototype() without return types