code: def test_subclass(self):
      class sub(np.ndarray):
          pass
  
      # one dimensional
      x1d = np.array([1, 2]).view(sub)
      assert_equal(repr(x1d), "sub([1, 2])")
  
      # two dimensional
      x2d = np.array([[1, 2], [3, 4]]).view(sub)
      assert_equal(repr(x2d), "sub([[1, 2],\n" "     [3, 4]])")
  
      # two dimensional with flexible dtype
      xstruct = np.ones((2, 2), dtype=[("a", "<i4")]).view(sub)
      assert_equal(
          repr(xstruct),
          "sub([[(1,), (1,)],\n"
          "     [(1,), (1,)]], dtype=[('a', '<i4')])",
      )
  
imports: import sys
  import gc
  from hypothesis import given
  from hypothesis.extra import numpy
  import pytest
  import numpy
  from numpy.testing import assert_, assert_equal, assert_raises, assert_warns, HAS_REFCOUNT, assert_raises_regex
  from numpy.core.arrayprint import _typelessdata
  import textwrap
label_desc: Use image node_id 2 for calling the TestArrayRepr obj's underlying member method code with example usage: obj.test_subclass() without return types