#   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.

# TODO: import all neural network related api under this directory,
# including layers, linear, conv, rnn etc.

from .layer import norm
from .functional import extension
from .layer import common

from . import initializer

__all__ = []
__all__ += norm.__all__
__all__ += extension.__all__
__all__ += common.__all__

# TODO: define alias in nn directory
# from .clip import ErrorClipByValue        #DEFINE_ALIAS
from .clip import GradientClipByGlobalNorm  #DEFINE_ALIAS
from .clip import GradientClipByNorm  #DEFINE_ALIAS
from .clip import GradientClipByValue  #DEFINE_ALIAS
# from .clip import set_gradient_clip        #DEFINE_ALIAS
from .clip import clip  #DEFINE_ALIAS
from .clip import clip_by_norm  #DEFINE_ALIAS
from .control_flow import case  #DEFINE_ALIAS
from .control_flow import cond  #DEFINE_ALIAS
# from .control_flow import DynamicRNN        #DEFINE_ALIAS
# from .control_flow import StaticRNN        #DEFINE_ALIAS
from .control_flow import switch_case  #DEFINE_ALIAS
from .control_flow import while_loop  #DEFINE_ALIAS
# from .control_flow import rnn        #DEFINE_ALIAS
# from .decode import BeamSearchDecoder        #DEFINE_ALIAS
# from .decode import Decoder        #DEFINE_ALIAS
from .decode import beam_search  #DEFINE_ALIAS
from .decode import beam_search_decode  #DEFINE_ALIAS
# from .decode import crf_decoding        #DEFINE_ALIAS
# from .decode import ctc_greedy_decoder        #DEFINE_ALIAS
# from .decode import dynamic_decode        #DEFINE_ALIAS
from .decode import gather_tree  #DEFINE_ALIAS
from .input import data  #DEFINE_ALIAS
# from .input import Input        #DEFINE_ALIAS
from .layer.activation import ELU
from .layer.activation import GELU
from .layer.activation import Hardshrink
# from .layer.activation import PReLU        #DEFINE_ALIAS
from .layer.activation import ReLU
from .layer.activation import LeakyReLU  #DEFINE_ALIAS
from .layer.activation import Sigmoid  #DEFINE_ALIAS
from .layer.activation import LogSigmoid
# from .layer.activation import Softmax        #DEFINE_ALIAS
from .layer.activation import LogSoftmax  #DEFINE_ALIAS
from .layer.activation import HSigmoid  #DEFINE_ALIAS
from .layer.common import BilinearTensorProduct  #DEFINE_ALIAS
from .layer.common import Pool2D  #DEFINE_ALIAS
from .layer.common import Pad2D  #DEFINE_ALIAS
from .layer.common import Embedding  #DEFINE_ALIAS
from .layer.common import Linear  #DEFINE_ALIAS
from .layer.common import Flatten  #DEFINE_ALIAS
from .layer.common import UpSample  #DEFINE_ALIAS
from .layer.conv import Conv2D  #DEFINE_ALIAS
from .layer.conv import Conv2DTranspose  #DEFINE_ALIAS
from .layer.conv import Conv3D  #DEFINE_ALIAS
from .layer.conv import Conv3DTranspose  #DEFINE_ALIAS
# from .layer.conv import TreeConv        #DEFINE_ALIAS
# from .layer.conv import Conv1D        #DEFINE_ALIAS
from .layer.extension import RowConv  #DEFINE_ALIAS
# from .layer.learning_rate import CosineDecay        #DEFINE_ALIAS
# from .layer.learning_rate import ExponentialDecay        #DEFINE_ALIAS
# from .layer.learning_rate import InverseTimeDecay        #DEFINE_ALIAS
# from .layer.learning_rate import NaturalExpDecay        #DEFINE_ALIAS
# from .layer.learning_rate import NoamDecay        #DEFINE_ALIAS
# from .layer.learning_rate import PiecewiseDecay        #DEFINE_ALIAS
# from .layer.learning_rate import PolynomialDecay        #DEFINE_ALIAS
# from .layer.loss import NCELoss        #DEFINE_ALIAS
from .layer.loss import CrossEntropyLoss  #DEFINE_ALIAS
from .layer.loss import MSELoss  #DEFINE_ALIAS
from .layer.loss import L1Loss  #DEFINE_ALIAS
from .layer.loss import NLLLoss  #DEFINE_ALIAS
from .layer.loss import BCELoss  #DEFINE_ALIAS
from .layer.loss import KLDivLoss  #DEFINE_ALIAS
from .layer.loss import MarginRankingLoss  #DEFINE_ALIAS
from .layer.norm import BatchNorm  #DEFINE_ALIAS
from .layer.norm import GroupNorm  #DEFINE_ALIAS
from .layer.norm import LayerNorm  #DEFINE_ALIAS
from .layer.norm import SpectralNorm  #DEFINE_ALIAS
from .layer.norm import InstanceNorm  #DEFINE_ALIAS
# from .layer.rnn import RNNCell        #DEFINE_ALIAS
# from .layer.rnn import GRUCell        #DEFINE_ALIAS
# from .layer.rnn import LSTMCell        #DEFINE_ALIAS
from .layer.distance import PairwiseDistance  #DEFINE_ALIAS

from .layer import loss  #DEFINE_ALIAS
from .layer import conv  #DEFINE_ALIAS
from ..fluid.dygraph.layers import Layer  #DEFINE_ALIAS
from ..fluid.dygraph.container import LayerList, ParameterList, Sequential  #DEFINE_ALIAS