code: def test_fromarrays_nested_structured_arrays(self):
      arrays = [
          np.arange(10),
          np.ones(10, dtype=[("a", "<u2"), ("b", "<f4")]),
      ]
      arr = np.rec.fromarrays(arrays)
  
imports: import collections.abc
  import textwrap
  from io import BytesIO
  from os import path
  from pathlib import Path
  import pytest
  import numpy
  from numpy.testing import assert_, assert_equal, assert_array_equal, assert_array_almost_equal, assert_raises, temppath
  from numpy.compat import pickle
label_desc: Use image node_id 14 for calling the TestRecord obj's underlying member method code with example usage: obj.test_fromarrays_nested_structured_arrays() without return types