Method getDescendingDirection

src/main/java/org/bukkit/material/Stairs.java:52–54

@return the direction the stairs descend towards

()

     * @return the direction the stairs descend towards
     */
    public BlockFace getDescendingDirection() {
        return getAscendingDirection().getOppositeFace();
    }

    /**
     * Set the direction the stair part of the block is facing