docstr: Initialize SessionState instance.
docstr_tok: ["Initialize","SessionState","instance","."]
code: def __init__(self, session, hash_funcs):
      """Initialize SessionState instance."""
      self.__dict__["_state"] = {
          "data": {},
          "hash": None,
          "hasher": _CodeHasher(hash_funcs),
          "is_rerun": False,
          "session": session,
      }
  
file_path: promptsource/promptsource/session.py
imports: from streamlit.hashing import _CodeHasher
  from streamlit.report_thread import get_report_ctx
  from streamlit.server.server import Server
label_desc: Use image node_id 1 to create a new _SessionState object  with example: obj = _SessionState(session, hash_funcs)