code: def test_sum_intna():
      a = pd.Series([1, None, 2], dtype=pd.Int32Dtype())
      b = dd.from_pandas(a, 2)
      assert_eq(a.sum(), b.sum())
  
imports: from __future__ import annotations
  import contextlib
  import warnings
  from datetime import datetime
  import numpy
  import pandas
  import pytest
  from pandas.api.types import is_scalar
  import dask.dataframe
  from dask.array.numpy_compat import _numpy_125
  from dask.dataframe._compat import PANDAS_GE_140, PANDAS_GE_150, PANDAS_GE_200, PANDAS_VERSION, check_numeric_only_deprecation
  from dask.dataframe.utils import assert_dask_graph, assert_eq, make_meta, pyarrow_strings_enabled
label_desc: Use image node_id 25 for calling a global function with example usage: test_sum_intna() without return types