code: def visit(
      self, key: Union[str, Enum], consumer: Callable[[Any], Any]
  ) -> "FluentDict":
      consumer(self._dict[self._key_to_str(key)])
      return self
  
imports: from enum import Enum
  from typing import Union, Callable, Any, Dict, Optional, Type, List, Generic, TypeVar
label_desc: Use image node_id 4 for calling the FluentDict obj's underlying member method code with example usage: obj.visit(key, consumer) and returns: self