code: def test_serialization(self):
      env1 = RuntimeEnv(
          pip=["requests"], env_vars={"hi1": "hi1", "hi2": "hi2"}
      )
  
      env2 = RuntimeEnv(
          env_vars={"hi2": "hi2", "hi1": "hi1"}, pip=["requests"]
      )
  
      assert env1 == env2
  
      serialized_env1 = env1.serialize()
      serialized_env2 = env2.serialize()
  
      # Key ordering shouldn't matter.
      assert serialized_env1 == serialized_env2
  
      deserialized_env1 = RuntimeEnv.deserialize(serialized_env1)
      deserialized_env2 = RuntimeEnv.deserialize(serialized_env2)
  
      assert env1 == deserialized_env1 == env2 == deserialized_env2
  
imports: import os
  import pytest
  import sys
  import tempfile
  from pathlib import Path
  from ray import job_config
  import yaml
  import jsonschema
  from ray._private.runtime_env.validation import parse_and_validate_excludes, parse_and_validate_working_dir, parse_and_validate_conda, parse_and_validate_pip, parse_and_validate_env_vars, parse_and_validate_py_modules
  from ray._private.runtime_env.plugin_schema_manager import RuntimeEnvPluginSchemaManager
  from ray.runtime_env import RuntimeEnv
label_desc: Use image node_id 2 for calling the TestParsedRuntimeEnv obj's underlying member method code with example usage: obj.test_serialization() without return types