Block and Metadata?

[TLHPoE]

world.setBlockAndMetadata(i + 0, j + 3, k + 3, Block.stoneSingleSlab.blockID, 13);

 

I'm using a schematic to java converter, and I've run into an error. The setBlock (for not metadata blocks) method has 4 parameters, while the setBlock (for metadata blocks) method has 6 parameters.

 

 

What are the 2 parameters for?

[Briggybros]

/**

    * Sets the block ID and metadata at a given location. Args: X, Y, Z, new block ID, new metadata, flags. Flag 1 will

    * cause a block update. Flag 2 will send the change to clients (you almost always want this). Flag 4 prevents the

    * block from being re-rendered, if this is a client world. Flags can be added together.

    */