class_docstr: Mixin for configurable classes that work with connection files
class_docstr_tok: ["Mixin","for","configurable","classes","that","work","with","connection","files"]
code: def _session_default(self) -> Session:
      from .session import Session
  
      return Session(parent=self)
  
imports: from __future__ import annotations
  import errno
  import glob
  import json
  import os
  import socket
  import stat
  import tempfile
  import warnings
  from getpass import getpass
  from typing import TYPE_CHECKING, Any, Dict, Union, cast
  import zmq
  from jupyter_core.paths import jupyter_data_dir, jupyter_runtime_dir, secure_write
  from traitlets import Bool, CaselessStrEnum, Instance, Integer, Type, Unicode, observe
  from traitlets.config import LoggingConfigurable, SingletonConfigurable
  from .localinterfaces import localhost
  from .utils import _filefind
label_desc: Use image node_id 5 for calling the ConnectionFileMixin obj's underlying member method code with example usage: obj._session_default() and returns: Session