code: def test_dtypes():
      # See issue #1328.
      # - Platform-dependent sizes.
      for size_check in m.get_platform_dtype_size_checks():
          print(size_check)
          assert (
              size_check.size_cpp == size_check.size_numpy
          ), size_check
      # - Concrete sizes.
      for check in m.get_concrete_dtype_checks():
          print(check)
          assert check.numpy == check.pybind11, check
          if check.numpy.num != check.pybind11.num:
              print(
                  f"NOTE: typenum mismatch for {check}: {check.numpy.num} != {check.pybind11.num}"
              )
  
imports: import pytest
  import env
  from pybind11_tests import numpy_array
label_desc: Use image node_id 1 for calling a global function with example usage: test_dtypes() without return types