# Copyright 2021 Huawei Technologies Co., Ltd
#
# 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 enum import Enum


class DecoderType(Enum):
    greedy: str = 'greedy'
    beam: str = 'beam'


class DistributedBackend(Enum):
    gloo = 'gloo'
    mpi = 'mpi'
    nccl = 'hccl'


class SpectrogramWindow(Enum):
    hamming = 'hamming'
    hann = 'hann'
    blackman = 'blackman'
    bartlett = 'bartlett'


class RNNType(Enum):
    lstm = 'lstm'
    rnn = 'rnn'
    gru = 'gru'