public IEXCloudClient(string publishableToken, string secretToken, bool signRequest, bool useSandBox,
	APIVersion version = APIVersion.stable, RetryPolicy retryPolicy = RetryPolicy.Exponential)

// For FREE and LAUNCH users
IEXCloudClient iexCloudClient = 
	new IEXCloudClient("publishableToken", "secretToken", signRequest: false, useSandBox: false); 

// For SCALE and GROW users
IEXCloudClient iexCloudClient = 
	new IEXCloudClient("publishableToken", "secretToken", signRequest: true, useSandBox: false); 

// Sandbox
IEXCloudClient iexCloudClient = 
	new IEXCloudClient("publishableToken", "secretToken", signRequest: false, useSandBox: true); 

using (var iexCloudClient = 
	new IEXCloudClient("publishableToken", "secretToken", signRequest: false, useSandBox: false))
{
	var response = await iexCloudClient.StockPrices.HistoricalPriceAsync("AAPL", ChartRange.OneMonth);
	if (response.ErrorMessage != null)
	{
		Console.WriteLine(response.ErrorMessage);
	}
	else
	{
	   foreach (var ohlc in response.Data)
	   {
	      var dt = ohlc.GetTimestampInEST(); // note use of the extension method instead of ohlc.date
	      Console.WriteLine(
	   	  $"{dt} Open: {ohlc.open}, High: {ohlc.high}, Low: {ohlc.low}, Close: {ohlc.close}, Vol: {ohlc.volume}");
	   }
	}
}

using (var sseClient = iexCloudClient.StockPrices.QuoteStream(symbols: new string[] { "spy", "aapl" }, 
	UTP: false, interval: StockQuoteSSEInterval.OneSecond))
{
	sseClient.Error += (s, e) =>
	{
		Console.WriteLine("Error Occurred. Details: {0}", e.Exception.Message);
	};
	sseClient.MessageReceived += m =>
	{
		Console.WriteLine(m.ToString());
	};
	await sseClient.StartAsync(); // this will block until Stop() is called
}

IEXLegacyClient iexLegacyClient = new IEXLegacyClient();