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- # Copyright 2017 The TensorFlow 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.
- # ==============================================================================
- """Special word constants.
- NOTE: The ids of the EOS and UNK constants should not be modified. It is assumed
- that these always occupy the first two ids.
- """
- # End of sentence.
- EOS = "<eos>"
- EOS_ID = 0
- # Unknown.
- UNK = "<unk>"
- UNK_ID = 1
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