Method on_epoch_begin

tensorflow/python/keras/callbacks.py:1667–1668

(self, epoch, logs=None)

    self._increment_step(self._validation_run_name)

  def on_epoch_begin(self, epoch, logs=None):
    self._set_default_writer(self._train_run_name)

  def on_epoch_end(self, epoch, logs=None):
    """Runs metrics and histogram summaries at epoch end."""