code: def test_nonstring_key(engine, pretty):
      value = build_test_dict({0: 1})
      result = pio.to_json_plotly(value, engine=engine)
      check_roundtrip(result, engine=engine, pretty=pretty)
  
imports: import pytest
  import plotly.io.json
  import plotly.graph_objects
  import plotly.express
  import numpy
  import pandas
  import json
  import datetime
  import re
  import sys
  import warnings
  from pytz import timezone
  from _plotly_utils.optional_imports import get_module
label_desc: Use image node_id 22 for calling a global function with example usage: test_nonstring_key(engine, pretty) without return types