code: def test_compare(self):
      data = [
          (10, "foo"),
          (20, "foo"),
          (10, "foo", "bar"),
          (10, "foo", "baz"),
      ]
      for d1 in data:
          for d2 in data:
              n1 = psycopg2.extensions.Notify(*d1)
              n2 = psycopg2.extensions.Notify(*d2)
              self.assertEqual((n1 == n2), (d1 == d2))
              self.assertEqual((n1 != n2), (d1 != d2))
  
imports: import unittest
  from collections import deque
  import psycopg2
  from psycopg2 import extensions
  from psycopg2.extensions import Notify
  from .testutils import ConnectingTestCase, skip_if_crdb, slow
  from .testconfig import dsn
  import sys
  import time
  import select
  from subprocess import Popen, PIPE
label_desc: Use image node_id 13 for calling the NotifiesTests obj's underlying member method code with example usage: obj.test_compare() without return types