class_docstr: The base Jupyter console application.
code: def _connection_file_default(self) -> str:
      return "kernel-%i.json" % os.getpid()
  
imports: import atexit
  import os
  import signal
  import sys
  import typing
  import uuid
  import warnings
  from jupyter_core.application import base_aliases, base_flags
  from traitlets import CBool, CUnicode, Dict, List, Type, Unicode
  from traitlets.config.application import boolean_flag
  from .None import KernelManager, connect, find_connection_file, tunnel_to_kernel
  from .blocking import BlockingKernelClient
  from .connect import KernelConnectionInfo
  from .kernelspec import NoSuchKernel
  from .localinterfaces import localhost
  from .restarter import KernelRestarter
  from .session import Session
  from .utils import _filefind
label_desc: Use image node_id 1 for calling the JupyterConsoleApp obj's underlying member method code with example usage: obj._connection_file_default() and returns: unknown