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- # coding:utf-8
- # Licensed to the Apache Software Foundation (ASF) under one
- # or more contributor license agreements. See the NOTICE file
- # distributed with this work for additional information
- # regarding copyright ownership. The ASF licenses this file
- # to you 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 abc import ABCMeta, abstractmethod
- from aliyunsdkcore.vendored.six import with_metaclass
- class Signer(with_metaclass(ABCMeta, object)):
- @abstractmethod
- def sign(self, region_id, request):
- pass
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