Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If you control a Tuner, you can Special Summon this card (from your hand) in Defense Position. All Warrior monsters you control gain 300 ATK.
--ブースト・ウォリアー
--Boost Warrior
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_SPSUM_PARAM)
	e1:SetTargetRange(POS_FACEUP_DEFENSE,0)
	e1:SetRange(LOCATION_HAND)
	e1:SetCondition(s.spcon)
	c:RegisterEffect(e1)
	--atk
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetRange(LOCATION_MZONE)
	e2:SetTargetRange(LOCATION_MZONE,0)
	e2:SetCode(EFFECT_UPDATE_ATTACK)
	e2:SetTarget(aux.TargetBoolFunction(Card.IsRace,RACE_WARRIOR))
	e2:SetValue(300)
	c:RegisterEffect(e2)
end
function s.filter(c)
	return c:IsFaceup() and c:IsType(TYPE_TUNER)
end
function s.spcon(e,c)
	if c==nil then return true end
	return Duel.GetLocationCount(c:GetControler(),LOCATION_MZONE)>0 and
		Duel.IsExistingMatchingCard(s.filter,c:GetControler(),LOCATION_MZONE,0,1,nil)
end