code: def push_context(ctx: "Context") -> None:
      """Pushes a new context to the current stack."""
      _local.__dict__.setdefault("stack", []).append(ctx)
  
file_path: catboost/contrib/python/click/py3/click/globals.py
imports: import typing
  from threading import local
label_desc: Use image node_id 4 for calling a global function with example usage: push_context(ctx) without return types