(self, callback_data, model, epoch)
Called when an epoch is about to begin

        Arguments:
            callback_data (HDF5 dataset): shared data between callbacks
            model (Model): model object
            epoch (int): index of epoch that is beginning
Called when an epoch is about to begin
Called when an epoch is about to begin
def on_epoch_begin(self, callback_data, model, epoch):
        """
        Called when an epoch is about to begin

        Arguments:
            callback_data (HDF5 dataset): shared data between callbacks
            model (Model): model object
            epoch (int): index of epoch that is beginning
        """
        pass
def on_epoch_begin ( self , callback_data , model , epoch ) : pass