code: def __getitem__(cls, fn):
      return Fresh(fn)
  
imports: import inspect
  import typing
  import warnings
  from collections import OrderedDict
  from functools import singledispatch
  import makefun
  from funsor.instrument import debug_logged
  from funsor.terms import Funsor, FunsorMeta, Variable, eager, to_funsor
  from funsor.util import as_callable
label_desc: Use image node_id 1 for calling the FreshMeta obj's underlying member method code with example usage: obj.__getitem__(cls, fn) and returns: Fresh