fill_future_gap# API documentation for tradingstrategy.utils.forward_fill.fill_future_gap Python function. fill_future_gap(df, timestamp, columns, pair_hint=None)[source]# Add a virtual OHLCV value at the end of the pair OHLCV data series if there is no real value. Parameters: timestamp (Timestamp) – columns (Collection[str]) – pair_hint (str | None) –