class_docstr: The ``ClientConnection`` was connected to a Bokeh server, but is
  now disconnected.
class_docstr_tok: ["The","``","ClientConnection","``","was","connected","to","a","Bokeh","server",",","but","is","now","disconnected","."]
docstr: Holds the error code, if any. None otherwise.
  
          
docstr_tok: ["Holds","the","error","code",",","if","any",".","None","otherwise","."]
code: def error_code(self) -> int | None:
      """Holds the error code, if any. None otherwise."""
      return self._error_code
  
imports: from __future__ import annotations
  import logging
  from abc import ABCMeta, abstractmethod
  from enum import Enum, auto
  from typing import TYPE_CHECKING, Any
  from ..core.types import ID
label_desc: Use image node_id 3 for calling the DISCONNECTED obj's underlying member method code with example usage: obj.error_code() and returns: self