code: def __init__(self, blocks: Blocks):
      self.blocks = blocks
      self._data = {}
  
file_path: gradio/gradio/state_holder.py
imports: from __future__ import annotations
  import threading
  from collections import OrderedDict
  from copy import deepcopy
  from typing import TYPE_CHECKING, Any
label_desc: Use image node_id 1 to create a new SessionState object  with example: obj = SessionState(blocks)