def register_epoch_callbacks(self, *callbacks):
        self.epoch_callbacks.extend(callbacks)
Wraps hidden fields in a hidden DIV tag, in order to keep XHTML
dataset/ETHPy150Open zomux/deepy/deepy/layers/layer.py/NeuralLayer.register_epoch_callbacks--crossover with--dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/flask_wtf/form.py/Form.hidden_tag