full code with imports

import:
    net.citizensnpcs.api.npc.NPC
    net.citizensnpcs.api.trait.Trait
    org.bukkit.plugin.java.JavaPlugin
    net.citizensnpcs.Citizens
    net.citizensnpcs.trait.SkinTrait
    net.citizensnpcs.npc.CitizensNPCRegistry
    net.citizensnpcs.api.CitizensAPI

command /testparty <player>:
    trigger:
        set {_loc1} to arg-1's location
        set {_zealot} to CitizensAPI.getNPCRegistry().createNPC(EntityType.PLAYER, "&4Zealot")
        {_zealot}.spawn({_loc1})
        send "%{_zealot}%" to arg-1
        {_zealot}.getOrAddTrait(SkinTrait.class).setSkinPersistent(UniqueSkinIdentifier String, SkinTexture String, SkinData String)