code: def prod_diagonal(self, g, v):
      return g * v
  
imports: import abc
  import torch
  from torch import nn
  from .None import misc
  from ..settings import NOISE_TYPES, SDE_TYPES
  from ..types import Tensor
label_desc: Use image node_id 5 for calling the ForwardSDE obj's underlying member method code with example usage: obj.prod_diagonal(g, v) and returns: unknown