code: def check_cython_example_module(mod):
      arr = pa.array([1, 2, 3])
      assert mod.get_array_length(arr) == 3
      with pytest.raises(TypeError, match="not an array"):
          mod.get_array_length(None)
  
      scal = pa.scalar(123)
      cast_scal = mod.cast_scalar(scal, pa.utf8())
      assert cast_scal == pa.scalar("123")
      with pytest.raises(
          NotImplementedError,
          match="casting scalars of type int64 to type list",
      ):
          mod.cast_scalar(scal, pa.list_(pa.int64()))
  
file_path: arrow/python/pyarrow/tests/test_cython.py
imports: import os
  import shutil
  import subprocess
  import sys
  import pytest
  import pyarrow
  import pyarrow.tests.util
label_desc: Use image node_id 1 for calling a global function with example usage: check_cython_example_module(mod) without return types