code: def assert_has_same_pairs(d1, d2):
      for a, b in ((min(pair), max(pair)) for pair in chain(d1, d2)):
          assert get_pair(d1, a, b) == get_pair(d2, a, b)
  
imports: from itertools import chain, combinations, product
  import pytest
  import networkx
label_desc: Use image node_id 2 for calling the TestTreeLCA obj's underlying member method code with example usage: obj.assert_has_same_pairs(d1, d2) without return types