Hi every one
I would appreciate help in this, currently, i am working on a frame algorithm using the stochastic indicator, and when I call the indicator in

OnSecuritiesChanged(self, algorithm, changes) i have to manually update the indicator through this for tuple in history.loc[ticker].itertuples():                    self.sto.Update(tuple.Index, tuple.close) but I encounter this error throw new NotSupportedException($"{GetType().Name} does not support Update(DateTime, decimal) method overload. Use Update({typeof(T).Name}) instead."); How can this be implemented in the above code: Thanks in advanceEssam Saied def OnSecuritiesChanged(self, algorithm, changes):

# clean up data for removed securities
symbols = [ x.Symbol for x in changes.RemovedSecurities ]
if len(symbols) > 0:
for subscription in algorithm.SubscriptionManager.Subscriptions:
if subscription.Symbol in symbols:
self.symbolDataBySymbol.pop(subscription.Symbol, None)
subscription.Consolidators.Clear()

# initialize data for added securities
addedSymbols = [ x.Symbol for x in changes.AddedSecurities if x.Symbol not in self.symbolDataBySymbol]
if len(addedSymbols) == 0: return

history = algorithm.History(addedSymbols, self.period, self.resolution)

for symbol in addedSymbols:
self.sto = algorithm.STO(symbol, self.period, self.resolution)

self.sto.Updated += self.STO_Updated

self.STO_Window = RollingWindow[IndicatorDataPoint](6)

if not history.empty:
ticker = SymbolCache.GetTicker(symbol)
"""
if ticker not in history.index.levels[0]:
algorithm.Log.Trace(f'RsiAlphaModel.OnSecuritiesChanged: {ticker} not found in history data frame.')
continue
"""

for tuple in history.loc[ticker].itertuples():
self.sto.Update(tuple.Index, tuple.close)

self.symbolDataBySymbol[symbol] = SymbolData(symbol, self.STO_Window)