# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.## 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__future__importprint_functionimportabcimportpaddle.fluid.incubate.data_generatorasdgclassReader(dg.MultiSlotDataGenerator):__metaclass__=abc.ABCMeta@abc.abstractmethoddefinit(self):pass@abc.abstractmethoddefgenerate_sample(self,line):pass