public static bool TryGet(CurrencyIsoCode isoCode, out Currency currency)
{
bool tryGet = false;
currency = null;
if (Enumeration.CheckDefined(isoCode))
{
tryGet = true;
currency = _cache.GetOrAdd(isoCode, () => init(isoCode, _provider.Get));
}
RaiseIfObsolete(currency);
return(tryGet);
}