code: def __str__(self):
      return str(self.arr)
  
imports: import os
  import sys
  import copy
  import platform
  import pytest
  from pathlib import Path
  import numpy
  from numpy.testing import assert_, assert_equal
  from numpy._core._type_aliases import c_names_dict
  from .None import util
label_desc: Use image node_id 4 for calling the Array obj's underlying member method code with example usage: obj.__str__() and returns: str