Modded trinket support (updated)

local Mod = RegisterMod("yourMod", 1)
local game = Game()

TrinketType.TRINKET_YOUR_TRINKET = Isaac.GetTrinketIdByName("Your Trinket")		-- trinket
Mod.COSTUME_ONE = Isaac.GetCostumeIdByPath("gfx/characters/YourCostume.anm2")

-- on post peffect update
function Mod:onModUpdate(player)

	if game:GetFrameCount() == 1
	and ctc then
		ctc:RegisterTrinketCostume(TrinketType.TRINKET_YOUR_TRINKET, Mod.COSTUME_ONE, "false")
	end
end
Mod:AddCallback(ModCallbacks.MC_POST_PEFFECT_UPDATE, Mod.onModUpdate)