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

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

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