How to put sword on Drowned hand?

I'm trying to put the sword in a drowned's hand, but getInventory() is not usable for this type of entity.

 

What code did you use to spawn it?

 

PHP:

        $nbt = Entity::createBaseNBT($block->add(1, 1, 1), null, lcg_value() * 360, 0);

 $entity = new Slaughter($player->level, $nbt);
 
 $entity->spawnToAll();
 $entity->getInventory()->setItemInHand(Item::get(276));

Console report getInventory don't exists to entity

 

I will help you latter :3

 

I create a slapper human with drowned custom skin ksksks, the only way I found

 

What api are you using for that entity class?

 

Entities don't have inventories natively so you can add it by using the one of the Actor packets