Hi all. I've been trying to get the SMA to use a weekly timeframe and am struggling. I figured out how to create the trade bar for a weekly bar from the help docs and BootCamp, but I'm having trouble with the SMA part. Line 21 gives an error

from System import *
from QuantConnect import *
from QuantConnect.Algorithm import *
from QuantConnect.Indicators import *
from QuantConnect.Data.Market import TradeBar

class LeverageForTheLongRun(QCAlgorithm):

    def Initialize(self):
        self.SetStartDate(2009,6, 1)  #Set Start Date
        self.SetEndDate(2020,2,2)    #Set End Date
        self.SetCash(100000)           #Set Strategy Cash
        self.spy = self.AddEquity("SPY", Resolution.Daily)
        self.upro = self.AddEquity("UPRO", Resolution.Daily)
        self.agg = self.AddEquity("AGG", Resolution.Daily)
        self.SetBrokerageModel(BrokerageName.InteractiveBrokersBrokerage)
        self.sma = self.SMA("SPY", 40)
        # Register the SMA to use Weekly timeframe bars.
        self.RegisterIndicator("SPY", self.sma, CalendarType.Weekly)
        
        # Create the Weekly timeframe bar.
        self.Consolidate("SPY", CalendarType.Weekly, self.OnDataConsolidated)
        
        # warm up the indicators
        self.SetWarmUp(40)

    def OnData(self, data):
        if data.ContainsKey("SPY") == False: return
        if data.ContainsKey("UPRO") == False: return
        if data.ContainsKey("AGG") == False: return
    
    # define the Weekly Trade bar for SPY from Initialize
    def OnDataConsolidated(self, bar):
        self.CurrentBar = bar
        
        # Free cash buffer, increase in case buy orders are rejected due to insufficient funds
        self.Settings.FreePortfolioValuePercentage = 0.05
        
        if self.CurrentBar.Close>self.sma.Current.Value:
            self.SetHoldings("AGG", 0)
            self.SetHoldings("UPRO", 1)
            
        if self.CurrentBar.Close<self.sma.Current.Value:
            self.SetHoldings("UPRO", 0)
            self.SetHoldings("AGG", 1)

thanks for the help.