Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
This card can be used to Ritual Summon any LIGHT Ritual Monster. You must also Tribute monsters from your hand or field whose total Levels exactly equal the Level of the Ritual Monster you Ritual Summon.
--精霊の祝福
--Sprite's Blessing
local s,id=GetID()
function s.initial_effect(c)
	Ritual.AddProcEqual(c,aux.FilterBoolFunction(Card.IsAttribute,ATTRIBUTE_LIGHT))
end