code: def test_rename_column(self):
      dset = self._create_dummy_dataset_dict(multiple_columns=True)
      dset = dset.rename_column(
          original_column_name="col_1", new_column_name="new_name"
      )
      for dset_split in dset.values():
          self.assertEqual(dset_split.num_columns, 2)
          self.assertListEqual(
              list(dset_split.column_names), ["new_name", "col_2"]
          )
      del dset
  
imports: import os
  import tempfile
  from unittest import TestCase
  import numpy
  import pandas
  import pytest
  from datasets import load_from_disk
  from datasets.arrow_dataset import Dataset
  from datasets.dataset_dict import DatasetDict, IterableDatasetDict
  from datasets.features import ClassLabel, Features, Sequence, Value
  from datasets.iterable_dataset import IterableDataset
  from datasets.splits import NamedSplit
  from .utils import assert_arrow_memory_doesnt_increase, assert_arrow_memory_increases, require_tf, require_torch
label_desc: Use image node_id 15 for calling the DatasetDictTest obj's underlying member method code with example usage: obj.test_rename_column() without return types