text: """
   Copyright (C) 2018-2020 Intel Corporation
  
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at
  
        http://www.apache.org/licenses/LICENSE-2.0
  
   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.
  """
  
  from extensions.ops.activation_ops import LeakyReLU, ReLU
  from mo.front.extractor import FrontExtractorOp
  
  
  class ReLUFrontExtractor(FrontExtractorOp):
      op = 'relu'
      enabled = True
  
      @classmethod
      def extract(cls, node):
          assert node.pb, 'Protobuf layer can not be empty'
          param = node.pb.relu_param
          negative_slope = param.negative_slope
          if negative_slope == 0:
              ReLU.update_node_stat(node)
          else:
              LeakyReLU.update_node_stat(node, {'negative_slope': negative_slope})
          return True
  