code: def test_struct_getitem(series, expected):
      sr = cudf.Series(series)
      assert sr[0] == expected
  
imports: import numpy
  import pandas
  import pyarrow
  import pytest
  import cudf
  from cudf.core.dtypes import StructDtype
  from cudf.testing._utils import DATETIME_TYPES, TIMEDELTA_TYPES, assert_eq
label_desc: Use image node_id 7 for calling a global function with example usage: test_struct_getitem(series, expected) without return types