code: def test_dump_schema(self) -> None:
      self.assertEqual(
          self.mapper.map_with_type(
              SampleOuterConfig(
                  my_schema=SampleConfigTypes(
                      my_bool=True,
                      my_int=-2,
                      my_float=3.14,
                      my_str="bar",
                      my_enum=SampleEnum.EGGS,
                      my_optional_str=None,
                      my_list=["spam", "ham"],
                      my_dict={"eggs": 6},
                  ),
                  my_list_of_schemas=[SampleConfigDefault()],
                  my_dict_of_schemas={
                      "only": SampleConfigHelp(
                          my_help_text="a nice value!"
                      )
                  },
              ),
              SampleOuterConfig,
          ),
          {
              "my_schema": {
                  "my_bool": True,
                  "my_int": -2,
                  "my_float": 3.14,
                  "my_str": "bar",
                  "my_enum": "eggs",
                  "my_optional_str": None,
                  "my_list": ["spam", "ham"],
                  "my_dict": {"eggs": 6},
              },
              "my_list_of_schemas": [{"my_default": 1}],
              "my_dict_of_schemas": {
                  "only": {"my_help_text": "a nice value!"}
              },
          },
      )
  
imports: from enum import Enum
  from typing import ClassVar, Dict, List, Optional, Union
  from unittest import main, TestCase
  import attr
  from torchbiggraph.schema import Dumper, extract_nested_type, inject_nested_value, Loader, Schema, schema, unpack_optional
label_desc: Use image node_id 3 for calling the TestDumper obj's underlying member method code with example usage: obj.test_dump_schema() without return types