code: def test_setitem_with_scalar_string(dtype):
      # is_float_dtype considers some strings, like 'd', to be floats
      # which can cause issues.
      arr = pd.array(["a", "c"], dtype=dtype)
      arr[0] = "d"
      expected = pd.array(["d", "c"], dtype=dtype)
      tm.assert_extension_array_equal(arr, 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 7 for calling a global function with example usage: test_setitem_with_scalar_string(dtype) without return types