Get Village Block ID 
To use this event use the following import:
groovy
import net.minecraftforge.event.terraingen.BiomeEvent.GetVillageBlockIDSub-Classes 
This event extends the following events and can use all their methods and fields: 
BiomeEvent
Methods 
groovy
net.minecraft.block.state.IBlockState getReplacement()groovy
void setReplacement(net.minecraft.block.state.IBlockState arg0)groovy
boolean hasResult()groovy
net.minecraft.block.state.IBlockState getOriginal()