code: def _increment_and_levy_area(self):
      W, H = trampoline.trampoline(
          self._increment_and_space_time_levy_area()
      )
      A = _davie_foster_approximation(
          W,
          H,
          self._end - self._start,
          self._top._levy_area_approximation,
          self._randn_levy,
      )
      return W, H, A
  
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 _Interval obj's underlying member method code with example usage: obj._increment_and_levy_area() and returns: W,  H,  A