code: def _deprecated():
      if _deprecated.called:
          return
      _deprecated.called = True
      warnings.warn(
          "zmq.eventloop.ioloop is deprecated in pyzmq 17."
          " pyzmq now works with default tornado and asyncio eventloops.",
          DeprecationWarning,
          stacklevel=3,
      )
  
file_path: catboost/contrib/python/pyzmq/py2/zmq/eventloop/ioloop.py
imports: from __future__ import absolute_import, division, with_statement
  import time
  import warnings
label_desc: Use image node_id 1 for calling a global function with example usage: _deprecated() without return types