code: def test_structured_array(self):
      # see gh-22041
      np.ma.array(
          (1, (b"", b"")),
          dtype=[
              ("x", np.int_),
              ("y", [("i", np.void), ("j", np.void)]),
          ],
      )
  
file_path: numpy/numpy/ma/tests/test_regression.py
imports: import numpy
  from numpy.testing import assert_, assert_array_equal, assert_allclose, suppress_warnings
label_desc: Use image node_id 14 for calling the TestRegression obj's underlying member method code with example usage: obj.test_structured_array() without return types