Volume polars_ta.ta.volume Functions: Name Description AD ADOSC OBV AD(high: Expr, low: Expr, close: Expr, volume: Expr) -> Expr ADOSC(high: Expr, low: Expr, close: Expr, volume: Expr, fastperiod: int = 3, slowperiod: int = 10) -> Expr OBV(close: Expr, volume: Expr) -> Expr