import tensorflow as tf

    num_enc_timesteps = 2
    num_dec_timesteps = 3

    def TestModel(seq2seq):
      with self.test_session(graph=tf.Graph()) as sess:
        tf.set_random_seed(111)
        random.seed(111)
        np.random.seed(111)

        enc_inp = [tf.constant(i + 1, tf.int32, shape=[batch_size])
