code: def test_is_close_infinite(self, xp, dtype):
      nan = float("nan")
      inf = float("inf")
      ninf = float("-inf")
      a = xp.array([0, nan, nan, 0, inf, ninf]).astype(dtype)
      b = xp.array([0, nan, 0, nan, inf, ninf]).astype(dtype)
      return xp.isclose(a, b)
  
imports: import operator
  import unittest
  import numpy
  import cupy
  from cupy import testing
label_desc: Use image node_id 3 for calling the TestIsclose obj's underlying member method code with example usage: obj.test_is_close_infinite(xp, dtype) and returns: xp