code: def main():  # pylint: disable=missing-function-docstring
      _metadata()
  
file_path: netron/tools/onnx_metadata.py
imports: import collections
  import json
  import os
  import re
  import onnx.backend.test.case
  import onnx.defs
label_desc: Use image node_id 14 for calling a global function with example usage: main() without return types