code: def test_nested_array_repr(self):
      a = np.empty((2, 2), dtype=object)
      a[0, 0] = np.eye(2)
      a[0, 1] = np.eye(3)
      a[1, 0] = None
      a[1, 1] = np.ones((3, 1))
      assert_equal(
          repr(a),
          "array([[array([[1., 0.],\n"
          "               [0., 1.]]), array([[1., 0., 0.],\n"
          "                                  [0., 1., 0.],\n"
          "                                  [0., 0., 1.]])],\n"
          "       [None, array([[1.],\n"
          "                     [1.],\n"
          "                     [1.]])]], dtype=object)",
      )
  
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 15 for calling the TestArray2String obj's underlying member method code with example usage: obj.test_nested_array_repr() without return types