text: #!/usr/bin/env python
  # -*- coding: utf-8; py-indent-offset:4 -*-
  """
  Created on Sat Jul 22 22:46:51 2017
  
  @author: Ivan Liu
  """
  
  class BackTestingEngines():
      
      def deployStrategy(self):
          return None
      
      def removeStrategy(self):
          return None
      
      def updateStrategy(self):
          return None
      
      
  
  class LiveABTestingEngines():
      
      def deployStrategy(self):
          return None
      
      def removeStrategy(self):
          return None
      
      def updateStrategy(self):
          return None    