CLASS bup net/minecraft/block/PistonExtensionBlock
	FIELD a FACING Lbvr;
	FIELD b TYPE Lbvu;
	METHOD <init> (Lbly$c;)V
		ARG 1 settings
	METHOD a getBlockEntityPiston (Lbgg;Lev;)Lbus;
		ARG 1 world
	METHOD a createBlockEntityPiston (Lbuw;Lfa;ZZ)Lbsz;
		ARG 0 pushedBlock
		ARG 1 dir
		ARG 2 extending