code: def test_pandas():
      df = pd.DataFrame(
          {"x": [1, 2, 3], "y": ["a" * 100, "b" * 100, "c" * 100]},
          index=[10, 20, 30],
      )
  
      assert sizeof(df) >= sizeof(df.x) + sizeof(df.y) - sizeof(
          df.index
      )
      assert sizeof(df.x) >= sizeof(df.index)
      assert sizeof(df.y) >= 100 * 3
      assert sizeof(df.index) >= 20
  
      assert isinstance(sizeof(df), int)
      assert isinstance(sizeof(df.x), int)
      assert isinstance(sizeof(df.index), int)
  
imports: from __future__ import annotations
  import os
  import sys
  from array import array
  import pytest
  from dask.multiprocessing import get_context
  from dask.sizeof import sizeof
  from dask.utils import funcname
label_desc: Use image node_id 7 for calling a global function with example usage: test_pandas() without return types