code: def _escape(line: str) -> str:
      for char in "<>{}":
          line = line.replace(char, "\\%s" % char)
      return line
  
imports: import abc
  import collections
  import dataclasses
  from typing import Any, Collection, Dict, List, Optional, Tuple
  import pydot
label_desc: Use image node_id 3 for calling a global function with example usage: _escape(line) and returns: line