local __TS__SymbolRegistryFor, __TS__SymbolRegistryKeyFor
do
    local symbolRegistry = {}
    function __TS__SymbolRegistryFor(key)
        if not symbolRegistry[key] then
            symbolRegistry[key] = __TS__Symbol(key)
        end
        return symbolRegistry[key]
    end
    function __TS__SymbolRegistryKeyFor(sym)
        for key in pairs(symbolRegistry) do
            if symbolRegistry[key] == sym then
                return key
            end
        end
        return nil
    end
end