import type { CandlePoint, LiveChartPoint, SeriesConfig } from "../types";
/** A single historical line sample is enough to anchor the live tip. */
export declare function hasLineChartData(points: LiveChartPoint[]): boolean;
/** A single committed OHLC bucket is drawable as a candle. */
export declare function hasCandleChartData(candles: CandlePoint[] | undefined): boolean;
/** Multi-series charts are non-empty when any series has one sample. */
export declare function hasMultiSeriesChartData(series: SeriesConfig[]): boolean;
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