class_docstr: A blocking in-process channel.
class_docstr_tok: ["A","blocking","in-process","channel","."]
docstr: Call the handlers for a message.
docstr_tok: ["Call","the","handlers","for","a","message","."]
code: def call_handlers(self, msg):
      """Call the handlers for a message."""
      self._in_queue.put(msg)
  
file_path: catboost/contrib/python/ipykernel/py3/ipykernel/inprocess/blocking.py
imports: import sys
  from queue import Empty, Queue
  from traitlets import Type
  from .channels import InProcessChannel
  from .client import InProcessKernelClient
label_desc: Use image node_id 2 for calling the BlockingInProcessChannel obj's underlying member method code with example usage: obj.call_handlers(msg) without return types