1# Copyright 2014 The Chromium Authors. All rights reserved. 2# Use of this source code is governed by a BSD-style license that can be 3# found in the LICENSE file. 4 5import exceptions 6 7# pylint: disable=R0201 8class BaseController(object): 9 def StartTracing(self, _): 10 raise exceptions.NotImplementError 11 12 def StopTracing(self): 13 raise exceptions.NotImplementError 14 15 def PullTrace(self): 16 raise exceptions.NotImplementError 17