(self, metadata=None)
Take actions at the beginning of the training.
Take actions at the beginning of the training.
Take actions at the beginning of the training .
def on_train_begin(self, metadata=None):
        """Take actions at the beginning of the training."""
        for cb in self.callbacks:
            cb.on_train_begin(metadata=metadata)
def on_train_begin ( self , metadata = None ) : for cb in self . callbacks : cb . on_train_begin ( metadata = metadata )