Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Your opponent must play with their hand revealed.
--マインド・オン・エア
--Mind on Air
local s,id=GetID()
function s.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_PUBLIC)
	e1:SetRange(LOCATION_MZONE)
	e1:SetTargetRange(0,LOCATION_HAND)
	c:RegisterEffect(e1)
end