code: def testIsCloseNan(self):
      self.assertTrue(
          compare.isClose(float("nan"), float("nan"), 1e-10)
      )
      self.assertFalse(compare.isClose(float("nan"), 1, 1e-10))
      self.assertFalse(compare.isClose(1, float("nan"), 1e-10))
      self.assertFalse(
          compare.isClose(float("nan"), float("inf"), 1e-10)
      )
  
imports: import copy
  import re
  import sys
  import textwrap
  from google.protobuf import text_format
  from tensorflow.python.platform import googletest
  from tensorflow.python.util.protobuf import compare
  from tensorflow.python.util.protobuf import compare_test_pb2
label_desc: Use image node_id 11 for calling the ProtoEqTest obj's underlying member method code with example usage: obj.testIsCloseNan() without return types