code: def _randn_levy(self):
      size = (*self._top._size, *self._top._size[-1:])
      return _randn(
          size, self._top._dtype, self._top._device, self._a_seed()
      )
  
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 6 for calling the _Interval obj's underlying member method code with example usage: obj._randn_levy() and returns: _randn