/**
     * Spawn a {@link FallingBlock} entity at the given {@link Location} of
     * the specified {@link Material}. The material dictates what is falling.
     * When the FallingBlock hits the ground, it will place that block.
     * <p>
     * The Material must be a block type, check with {@link Material#isBlock()
     * material.isBlock()}. The Material may not be air.
     *
     * @param location The {@link Location} to spawn the FallingBlock
     * @param data The block data
     * @return The spawned {@link FallingBlock} instance
     * @throws IllegalArgumentException if {@link Location} or {@link
     *     BlockData} are null
     */
    @NotNull
    public FallingBlock spawnFallingBlock(@NotNull Location location, @NotNull BlockData data) throws IllegalArgumentException;