text: # -*- coding: utf-8 -*-
  # Copyright 2019 SAMITorch Authors. All Rights Reserved.
  #
  # Licensed under the MIT License;
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     https://opensource.org/licenses/MIT
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  # ==============================================================================
  
  import abc
  
  
  class Initializer(metaclass=abc.ABCMeta):
  
      def __init__(self):
          """Class constructor."""
          pass
  
      @abc.abstractmethod
      def __call__(self, *args, **kwargs):
          """Initialize a PyTorch torch.nn layer/operation.
  
          Raises:
              NotImplementedError: If not overwritten by subclass.
          """
          raise NotImplementedError()
  