A Creature.

It might be required for you to import the package if you encounter any issues (like casting an Array), so better be safe than sorry and add the import.
import crafttweaker.entity.IEntityCreature;

IEntityCreature extends IEntityLiving. That means all functions available to IEntityLiving objects also are available to IEntityCreature.

ZenGetter	类型
ZenGetter hasPath	类型 bool
ZenGetter isWithinHomeDistance	类型 bool
ZenGetter homePosition	类型 IBlockPos
ZenGetter maximumHomeDistance	类型 float
ZenGetter hasHome	类型 bool

Method expects nothing.
Returns nothing.

ZenScript
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entCreObj.playLivingSound();

First method expects an IBlockPos object and an int.
Second method expects nothing.
Both methods return nothing.

ZenScript
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entAnObj.setHomePositionAndDistance(IBlockPos pos, int distance);
entAnObj.detachHome();

Method expects an IBlockPos object.
Returns a bool.

ZenScript
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entAnObj.isPositionWithinHomeDistance