code: @SideOnly(Side.CLIENT)
  	public static void onRenderBlock(IRenderBlockCallback callback, CallbackOption<IRenderBlockCallbackPredicate> option)
  	{
  		renderBlockRegistry.registerCallback(callback, option);
  	}
docs: Registers a {@link IRenderBlockCallback} with the specified {@link CallbackOption} to be called when rendering blocks.
  
  @param callback the callback
  @param option the option