Gradients are modified in-place.
nn_utils_clip_grad_value_(parameters, clip_value)
(Iterable(Tensor) or Tensor): an iterable of Tensors or a single Tensor that will have gradients normalized
(float or int): maximum allowed value of the gradients.
The gradients are clipped in the range \(\left[\mbox{-clip\_value}, \mbox{clip\_value}\right]\)