code: def test_deduplicate_simple():
      mappings, new_ids = deduplicate([str(i) for i in range(5)])
      assert mappings == []
      assert new_ids == ["0", "1", "2", "3", "4"]
  
      mappings, new_ids = deduplicate("0" for i in range(5))
      assert mappings == [
          ("0", "0_1"),
          ("0", "0_2"),
          ("0", "0_3"),
          ("0", "0_4"),
      ]
      assert new_ids == ["0", "0_1", "0_2", "0_3", "0_4"]
  
      mappings, new_ids = deduplicate(["0", "0_1", "0", "0_2", "0"])
      assert mappings == [("0", "0_2"), ("0_2", "0_2_1"), ("0", "0_3")]
      assert new_ids == ["0", "0_1", "0_2", "0_2_1", "0_3"]
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_deduplicate_simple() without return types