class_docstr: The ``NOPScaler`` assigns a scale equals to 1 to each input item, i.e., no
  scaling is applied upon calling the ``NOPScaler``.
code: def __init__(self, *args, **kwargs):
      super().__init__(*args, **kwargs)
  
imports: from typing import Tuple, Optional
  import mxnet.ndarray
  from mxnet.gluon import nn
  from gluonts.core.component import validated
  from gluonts.mx import Tensor
label_desc: Use image node_id 1 to create a new NOPScaler object from inherited base classes: Scaler with example: obj = NOPScaler()