new_contents: from chainer import functions as F
  
  def clipped_loss(x, t):
      diff = x - t
      abs_loss = abs(diff)
      squared_loss = diff ** 2
      abs_loss = F.expand_dims(abs_loss, 1)
      squared_loss = F.expand_dims(squared_loss, 1)
      return F.sum(F.min(F.concat((abs_loss, squared_loss), axis=1), axis=1))
  
subject: Move clippped_loss into a separate file