old_contents: from flask import Flask
  from flask_restful import reqparse, abort, Api, Resource
  
  app = Flask("pre-fixlist")
  api = Api(app)
  
  class PrefixListList(Resource):
  
      def get(self):
          # Return a list of all prefix lists we know about
          return None
  
  class PrefixList(Resource):
  
      def get(self, listid):
          # Return a list of versions 
          return None
  
      def post(self):
          # Create a new prefixlist
          return None
  
      def put(self, listid):
          # Update a prefixlist
          return None
  
      def delete(self, listid):
          return None
  
  class PrefixListVersion(Resource):
  
      def get(self, listid, version):
          # Return a list of prefixes contained in the specific version of the prefixlist
          return None
  
  api.add_resource(PrefixListList, "/prefixlist")
  api.add_resource(PrefixList, "/prefixlist/<int:listid>")
  api.add_resource(PrefixListVersion, "/prefixlist/<int:listid>/<string:version>")
  
  if __name__ == '__main__':
      app.run(debug=True)
  
new_contents: from flask import Flask
  from flask_restful import abort, Api, Resource
  
  app = Flask("pre-fixlist")
  api = Api(app)
  
  class PrefixListList(Resource):
  
      def get(self):
          # Return a list of all prefix lists we know about
          return None
  
  class PrefixList(Resource):
  
      def get(self, listid):
          # Return a list of versions 
          return None
  
      def post(self):
          # Create a new prefixlist
          return None
  
      def put(self, listid):
          # Update a prefixlist
          return None
  
      def delete(self, listid):
          return None
  
  class PrefixListVersion(Resource):
  
      def get(self, listid, version):
          # Return a list of prefixes contained in the specific version of the prefixlist
          return None
  
  api.add_resource(PrefixListList, "/prefixlist")
  api.add_resource(PrefixList, "/prefixlist/<int:listid>")
  api.add_resource(PrefixListVersion, "/prefixlist/<int:listid>/<string:version>")
  
  if __name__ == '__main__':
      app.run(debug=True)
  
subject: Remove unused include