# keras
from keras.models import Model, Sequential
from keras.callbacks import TensorBoard, EarlyStopping
from keras.optimizers import adam, Nadam
from keras import backend as K
from keras.models import load_model
from keras.layers import Input, InputLayer, Dense, RepeatVector, Lambda, TimeDistributed, Flatten, Reshape, Conv1D, MaxPool1D, Conv2DTranspose, Activation