new_contents: from toolbox.datasets.sr import load_data
  from toolbox.models import srcnn
  from toolbox.training import train
  
  
  (x_train, y_train), (x_test, y_test) = load_data()
  model = srcnn(x_train.shape[1:], f1=9, f2=1, f3=5)
  train(model, x_train, y_train, validation_data=(x_test, y_test),
        nb_epoch=2, resume=True, save_dir='save')
  
subject: Add a simple experiment script