code: def test_rename_fields_field_in_dict():
      # If given field is in the dictionary, it will be renamed
      d = {"a": 1, "b": 2}
      rename_fields(d, "a", "x")
      assert "a" not in d
      assert "x" in d
      assert d["x"] == 1
      assert d["b"] == 2
  
imports: from __future__ import annotations
  import logging
  from typing import TYPE_CHECKING
  import pytest
  from bentoml._internal.configuration.helpers import expand_env_var_in_values
  from bentoml._internal.configuration.helpers import flatten_dict
  from bentoml._internal.configuration.helpers import is_valid_ip_address
  from bentoml._internal.configuration.helpers import load_config_file
  from bentoml._internal.configuration.helpers import rename_fields
  from bentoml.exceptions import BentoMLConfigException
label_desc: Use image node_id 2 for calling a global function with example usage: test_rename_fields_field_in_dict() without return types