Error Running "buy_and_hold_schedule_function"

DataSet:    NSE Daily
Start Date: 02 Jan 2007
End Date:   01 Jan 2020
Capital:    10000

line 24, in initialize
Symbol 'SPY' was not found.

Please have a look at the available datasets on Blueshift and what instruments each of them contains. The ETF 'SPY' is only available the NYSE daily dataset and is used a as a benchmark asset. We do not have ETFs available in the datasets yet. The NSE daily dataset is for daily equitiy prices of top 500 (NSE 500) stocks trading on NSE (National Stock Exchange) of India.