human
I wrote the below code

    if (axis not in [1, 2]):
        raise ValueError('Only    axis=1    and    axis=2    supported    for    now.')
    with tf.name_scope('pad_to_same_length', [x, y]):
        x_length = tf.shape(x)[axis]
        y_length = tf.shape(y)[axis]
        max_length = tf.maximum(x_length, y_length)
        if (final_length_divisible_by > 1):
            max_length += (final_length_divisible_by - 1)
            max_length //= final_length_divisible_by
            max_length *= final_length_divisible_by
        length_diff1 = (max_length - x_length)
        length_diff2 = (max_length - y_length)
        def padding_list(length_diff, arg):
            if (axis == 1):
                return [[[0, 0], [0, length_diff]], tf.zeros([(tf.rank(arg) - 2), 2], dtype=tf.int32)]
            return [[[0, 0], [0, 0], [0, length_diff]], tf.zeros([(tf.rank(arg) - 3), 2], dtype=tf.int32)]
        paddings1 = tf.concat(padding_list(length_diff1, x), axis=0)
        paddings2 = tf.concat(padding_list(length_diff2, y), axis=0)
        res_x = tf.pad(x, paddings1)
        res_y = tf.pad(y, paddings2)
        x_shape = x.shape.as_list()
        x_shape[axis] = None
        res_x.set_shape(x_shape)
        y_shape = y.shape.as_list()
        y_shape[axis] = None
        res_y.set_shape(y_shape)
        return (res_x, res_y)

What's a good function header?

=====
Here's a good function header?
assistant
#Here's a good function header.

def pad_to_same_length(x, y, final_length_divisible_by=1, axis=1):