Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Equip only to a Warrior monster. It gains 800 ATK. While equipped to a monster, this card cannot be destroyed by card effects.
--融合武器ムラサメブレード
--Fusion Sword Murasame Blade
local s,id=GetID()
function s.initial_effect(c)
	aux.AddEquipProcedure(c,nil,aux.FilterBoolFunction(Card.IsRace,RACE_WARRIOR))
	--atk up
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_EQUIP)
	e2:SetCode(EFFECT_UPDATE_ATTACK)
	e2:SetValue(800)
	c:RegisterEffect(e2)
	--immune to des
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_SINGLE)
	e4:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e4:SetCode(EFFECT_INDESTRUCTABLE_EFFECT)
	e4:SetRange(LOCATION_SZONE)
	e4:SetValue(1)
	c:RegisterEffect(e4)
end