Formatting

      writer.close()

  def _install_queue(self):

    if not self.use_queue or self.input_queue is not None:

      for feature in self.features:

        feature.pre_queue = True

    if not self.use_queue:

      for layer in self.features + self.labels + self.task_weights:

        layer.pre_queue = True

      return

    names = []

    shapes = []

    pre_q_inputs = []