def _get_losses(self, opt):
    loss_states = ['loss', 'hm_loss', 'wh_loss', 'off_loss', 'id_loss']
    loss = MotLoss(opt)
    return (loss_states, loss)
def _get_losses(self, opt):
    loss_states = ['loss', 'hm_loss', 'wh_loss', 'off_loss', 'id_loss']
    loss = MotLoss(opt)
    return (loss_states, loss)