code: def test_PairingHeap():
      _test_heap_class(PairingHeap)
  
file_path: networkx/networkx/utils/tests/test_heaps.py
imports: import pytest
  import networkx
  from networkx.utils import BinaryHeap, PairingHeap
label_desc: Use image node_id 2 for calling a global function with example usage: test_PairingHeap() without return types