code: def test_constructor_nan_like(na):
      expected = pd.arrays.StringArray(np.array(["a", pd.NA]))
      tm.assert_extension_array_equal(
          pd.arrays.StringArray(np.array(["a", na], dtype="object")),
          expected,
      )
  
imports: import operator
  import numpy
  import pytest
  from pandas.compat.pyarrow import pa_version_under12p0
  from pandas.core.dtypes.common import is_dtype_equal
  import pandas
  import pandas._testing
  from pandas.core.arrays.string_arrow import ArrowStringArray, ArrowStringArrayNumpySemantics
label_desc: Use image node_id 21 for calling a global function with example usage: test_constructor_nan_like(na) without return types