/// <summary>
/// Exchange Rates at
/// </summary>
/// <param name="at">DateTime of Exchange Rates</param>
/// <returns>Exchange Rates</returns>
public static Task <IDictionary <CurrencyInfo, decimal> > ExchangeRatesAsync(this IExchangeOffice office, DateTime at)
{
if (null == office)
{
throw new ArgumentNullException(nameof(office));
}
return(office.ExchangeRatesAsync(at, CancellationToken.None));
}
/// <summary>
/// Exchange Rates at
/// </summary>
/// <param name="at">DateTime of Exchange Rates</param>
/// <returns>Exchange Rates</returns>
public static IDictionary <CurrencyInfo, decimal> ExchangeRates(this IExchangeOffice office, DateTime at)
{
if (office is null)
{
throw new ArgumentNullException(nameof(office));
}
return(office.ExchangeRatesAsync(at, CancellationToken.None).GetAwaiter().GetResult());
}
