code: def test_rename_inplace(self, float_frame):
      float_frame.rename(columns={"C": "foo"})
      assert "C" in float_frame
      assert "foo" not in float_frame
  
      c_values = float_frame["C"]
      float_frame = float_frame.copy()
      return_value = float_frame.rename(
          columns={"C": "foo"}, inplace=True
      )
      assert return_value is None
  
      assert "C" not in float_frame
      assert "foo" in float_frame
      # GH 44153
      # Used to be id(float_frame["foo"]) != c_id, but flaky in the CI
      assert float_frame["foo"] is not c_values
  
imports: from collections import ChainMap
  import inspect
  import numpy
  import pytest
  from pandas import DataFrame, Index, MultiIndex, merge
  import pandas._testing
label_desc: Use image node_id 7 for calling the TestRename obj's underlying member method code with example usage: obj.test_rename_inplace(float_frame) without return types