An IBlockPos object represents a position in the game.

It might be required for you to import the package if you encounter any issues, so better be safe than sorry and add the import.
import crafttweaker.world.IBlockPos;

ZenMethod	ZenGetter/Caster	Возвращаемый тип	Описание
ZenMethod getX()	ZenGetter/Caster x	Возвращаемый тип int	Описание Returns the position's X value
ZenMethod getY()	ZenGetter/Caster y	Возвращаемый тип int	Описание Returns the position's Y value
ZenMethod getZ()	ZenGetter/Caster z	Возвращаемый тип int	Описание Returns the position's Z value
ZenMethod asPosition3f	ZenGetter/Caster as IPosition3f	Возвращаемый тип IPosition3f	Описание Returns the position as Position3f Object.

Returns a new IBlockPos that is offset blocks into the direction direction.

IBlockPos getOffset(IFacing direction, int offset);

Alternatively you can directly get the IFacing objects using the static methods provided there.

• IFacing direction → The direction
• int offset → how many blocks in that direction?