Using Alpaca.Markets C#

Can someone please provide some sample code in c# using the Alpaca.Markets libarary.

Some sample code to get real time streaming price data for (aapl, bac, amd). I am assume a single that return data for all those stock.

Also sample code for buy 10 share aapl at market. Short 10 share bac at market. Sell 10 share aapl at market, and cover 10 share bac at market.

thank you