code: def test_incomparable(self):
      h = [5, 4, "a", 2, 1, 0]
      pytest.raises(TypeError, MappedQueue, h)
  
imports: import pytest
  from networkx.utils.mapped_queue import MappedQueue, _HeapElement
label_desc: Use image node_id 6 for calling the TestMappedQueue obj's underlying member method code with example usage: obj.test_incomparable() without return types