code: def test_reading_graph_with_single_element_list_property(self):
      with byte_file() as f:
          f.write(
              dedent(
                  """
                graph [
                  node [
                    id 0
                    label "n1"
                    properties "_networkx_list_start"
                    properties "element"
                  ]
                ]
              """
              ).encode("ascii")
          )
          f.seek(0)
          graph = nx.read_gml(f)
      assert graph.nodes(data=True)["n1"] == {"properties": ["element"]}
  
imports: import codecs
  import io
  import math
  from ast import literal_eval
  from contextlib import contextmanager
  from textwrap import dedent
  import pytest
  import networkx
  from networkx.readwrite.gml import literal_destringizer, literal_stringizer
label_desc: Use image node_id 4 for calling the TestPropertyLists obj's underlying member method code with example usage: obj.test_reading_graph_with_single_element_list_property() without return types