message: Log type of dataset
diff: @@ -11,8 +11,8 @@ tf.logging.set_verbosity(tf.logging.ERROR)
  def main():
  x_train, y_train, x_test, y_test = load()
  - print("x_train:", x_train.shape)
  - print("y_train:", y_train.shape)
  + print("x_train:", x_train.shape, type(x_train))
  + print("y_train:", y_train.shape, type(x_train))
  def load():
  