import { type SharedValue } from "react-native-reanimated";
import type { CandlePoint, LiveChartPoint } from "../types";
/**
 * Data presence for {@link LiveChart}: line mode needs ≥1 point;
 * candle mode needs ≥1 committed candle (`liveCandle` alone does not count).
 *
 * {@link useChartReveal} seeds its first-paint state off `hasData` directly (in a
 * layout effect), so no JS-thread snapshot is read during render here.
 */
export declare function useLiveChartHasData({ isCandle, data, candles, }: {
    isCandle: boolean;
    data: SharedValue<LiveChartPoint[]>;
    candles: SharedValue<CandlePoint[]> | undefined;
}): {
    hasData: SharedValue<boolean>;
};
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