code: def test_multiline_repr(self):
      class MultiLine:
          def __repr__(self):
              return "Line 1\nLine 2"
  
      a = np.array([[None, MultiLine()], [MultiLine(), None]])
  
      assert_equal(
          np.array2string(a),
          "[[None Line 1\n"
          "       Line 2]\n"
          " [Line 1\n"
          "  Line 2 None]]",
      )
      assert_equal(
          np.array2string(a, max_line_width=5),
          "[[None\n"
          "  Line 1\n"
          "  Line 2]\n"
          " [Line 1\n"
          "  Line 2\n"
          "  None]]",
      )
      assert_equal(
          repr(a),
          "array([[None, Line 1\n"
          "              Line 2],\n"
          "       [Line 1\n"
          "        Line 2, None]], dtype=object)",
      )
  
      class MultiLineLong:
          def __repr__(self):
              return "Line 1\nLooooooooooongestLine2\nLongerLine 3"
  
      a = np.array([[None, MultiLineLong()], [MultiLineLong(), None]])
      assert_equal(
          repr(a),
          "array([[None, Line 1\n"
          "              LooooooooooongestLine2\n"
          "              LongerLine 3          ],\n"
          "       [Line 1\n"
          "        LooooooooooongestLine2\n"
          "        LongerLine 3          , None]], dtype=object)",
      )
      assert_equal(
          np.array_repr(a, 20),
          "array([[None,\n"
          "        Line 1\n"
          "        LooooooooooongestLine2\n"
          "        LongerLine 3          ],\n"
          "       [Line 1\n"
          "        LooooooooooongestLine2\n"
          "        LongerLine 3          ,\n"
          "        None]],\n"
          "      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 14 for calling the TestArray2String obj's underlying member method code with example usage: obj.test_multiline_repr() and returns: str, str