class_docstr: A dict like proxy object for accessing information about current user.
code: def __setattr__(self, name: str, value: Optional[str]) -> NoReturn:
      raise StreamlitAPIException(
          "st.experimental_user cannot be modified"
      )
  
file_path: streamlit/lib/streamlit/user_info.py
imports: from typing import Iterator, Mapping, NoReturn, Optional
  from streamlit.errors import StreamlitAPIException
  from streamlit.runtime.scriptrunner import get_script_run_ctx
  from streamlit.runtime.scriptrunner.script_run_context import UserInfo
label_desc: Use image node_id 3 for calling the UserInfoProxy obj's underlying member method code with example usage: obj.__setattr__(name, value) without return types