I'm using VWAP and can't seem to find any documentation on retrieving the upper and lower band values. I know that for some other indicators that have upper and lower bands such as Bollinger Bands, the .UpperBand.Current.Value attribute is used for the indicator. However, if I use self.vwap.UpperBand.Current.Value or just self.vwap.UpperBand, it doesn't return a value. At no point does the initialization of the VWAP indicator request an input for standard deviation so I'm assuming there's no built-in function for the upper and lower bands. As of now, I'm just manually calculating the upper and lower bands with standard deviation. However, I'd still like to know if there's a built-in function that I'm missing which would certainly be helpful to learn.

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