Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
This card is used to Ritual Summon "Chakra". You must also Tribute monsters from your hand or field whose total Levels equal 7 or more.
--チャクラの復活
--Resurrection of Chakra
local s,id=GetID()
function s.initial_effect(c)
	Ritual.AddProcGreaterCode(c,7,nil,65393205)
end