Hi Can someone help me make an SMA and EMA of the nasdaq and S&P mini? i'm at a brick wall here..i've explored 

https://github.com/QuantConnect/Lean/blob/fdc866fda04e3de5a2c4ec892a4569b3face5700/Algorithm.Python/HistoryAlgorithm.py

 and other links but i can't get the code implementation right.