code: def __getitem__(self, item):
      raise KeyError
  
imports: import math
  import trampoline
  import warnings
  import numpy
  import torch
  from .None import brownian_base
  from ..settings import LEVY_AREA_APPROXIMATIONS
  from ..types import Scalar, Optional, Tuple, Union, Tensor
label_desc: Use image node_id 2 for calling the _EmptyDict obj's underlying member method code with example usage: obj.__getitem__(item) without return types