class_docstr_tok: []
code: def readonly(self) -> bool:
      return self.alias.readonly
  
imports: from __future__ import annotations
  import logging
  from copy import copy
  from types import FunctionType
  from typing import TYPE_CHECKING, Any, Callable, Generic, TypeVar
  from ...util.deprecation import deprecated
  from .singletons import Undefined
  from .wrappers import PropertyValueColumnData, PropertyValueContainer
label_desc: Use image node_id 5 for calling the AliasPropertyDescriptor obj's underlying member method code with example usage: obj.readonly() and returns: self