def METHOD_NAME():
    pin_obj = quantiles.PinballLoss(tau=0.0)
    y_true = tf.constant([1, 9, 2, -5, -2, 6], shape=(2, 3))
    y_pred = tf.constant([4, 8, 12, 8, 1, 3], shape=(2, 3), dtype=tf.dtypes.float32)
    loss = pin_obj(y_true, y_pred)
    np.testing.assert_almost_equal(loss, 4.8333, 3)