code: def check_array_op(self, op, xp, dtype):
      a = testing.shaped_arange((2, 3), xp, dtype)
      return op(a)
  
imports: import operator
  import unittest
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 1 for calling the TestArrayIntUnaryOp obj's underlying member method code with example usage: obj.check_array_op(op, xp, dtype) and returns: op