class_docstr: A harness for server-specific information and tasks related to
  collections of Bokeh sessions.
  
  *This base class is probably not of interest to general users.*
class_docstr_tok: ["A","harness","for","server-specific","information","and","tasks","related","to","collections","of","Bokeh","sessions",".","*","This","base","class","is","probably","not","of","interest","to","general","users",".","*"]
docstr: ``SessionContext`` instances belonging to this application.
  
  *Subclasses must implement this method.*
docstr_tok: ["``","SessionContext","``","instances","belonging","to","this","application",".","*","Subclasses","must","implement","this","method",".","*"]
code: def sessions(self) -> list[ServerSession]:
      """``SessionContext`` instances belonging to this application.
  
      *Subclasses must implement this method.*
  
      """
      pass
  
imports: from __future__ import annotations
  import logging
  from abc import ABCMeta, abstractmethod
  from typing import TYPE_CHECKING, Any, Awaitable, Callable, ClassVar
  from ..core.types import ID
  from ..document import Document
  from ..settings import settings
label_desc: Use image node_id 1 for calling the ServerContext obj's underlying member method code with example usage: obj.sessions() without return types