Added extra line as lint was complaining kernc#316

Author: zlpatel

backtesting/test/__init__.py

@@ -15,6 +15,7 @@ def _read_file(filename):
 EURUSD = _read_file('EURUSD.csv')
 """DataFrame of hourly EUR/USD forex data from April 2017 to February 2018."""
 
+
 def SMA(arr: pd.Series, n: int) -> pd.Series:
     """
     Returns `n`-period simple moving average of array `arr`.