code: def _init_router(self) -> None:
      self._router = MessageSockRouter(
          self._sock_client, mailbox=self._mailbox
      )
  
file_path: wandb/wandb/sdk/interface/interface_sock.py
imports: import logging
  from typing import TYPE_CHECKING, Any, Optional
  from ..lib.mailbox import Mailbox
  from ..lib.sock_client import SockClient
  from .interface_shared import InterfaceShared
  from .message_future import MessageFuture
  from .router_sock import MessageSockRouter
label_desc: Use image node_id 2 for calling the InterfaceSock obj's underlying member method code with example usage: obj._init_router() without return types