class_docstr: Writes a single pyi file
class_docstr_tok: ["Writes","a","single","pyi","file"]
code: def _write_line(self, line: str, *args: str) -> None:
      self.lines.append(self.indent + line.format(*args))
  
file_path: onnx/tools/protoc-gen-mypy.py
imports: import sys
  from collections import defaultdict
  from contextlib import contextmanager
  from typing import Any, Callable, Dict, Generator, List, Optional, Set, cast
label_desc: Use image node_id 5 for calling the PkgWriter obj's underlying member method code with example usage: obj._write_line(line) without return types