listenSignalOpenedUnique

declare function listenSignalOpenedUnique(filterFn: (event: IStrategyTickResultOpened) => boolean | Promise<boolean>, fn: (event: IStrategyTickResultOpened) => void): () => void;
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Subscribes to opened tick results, once per new signal id (live + backtest).

Parameters

Parameter	Description
filterFn	Predicate selecting which opened events are considered
fn	Callback invoked once per new signal id