A MineCraft Axis Aligned Boundary Box object allows you change a Block's Boundary borders to a given cuboid shape.

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 mods.contenttweaker.AxisAlignedBB;

You can get such an object using a Block's axisAlignedBB Property.
Alternatively, you can use this package to create a new MCAxisAlignedBB object:

ZenScript
 Copy
AxisAlignedBB.create(double minX, double minY, double minZ, double maxX, double maxY, double maxZ);

All parameters for this function are doubles between 0 and 1!

You can get and set each Property using getProperty() or object.property.

ZenProperty	Type
ZenProperty minX	Type double
ZenProperty minY	Type double
ZenProperty minZ	Type double
ZenProperty maxX	Type double
ZenProperty maxY	Type double
ZenProperty maxZ	Type double