/**
 * Seeded OHLCV generators for trading demos and tests.
 */
export interface OhlcvData {
    x: Float64Array;
    open: Float32Array;
    high: Float32Array;
    low: Float32Array;
    close: Float32Array;
    volume: Float32Array;
}
export interface OhlcvOptions {
    startMs?: number;
    seed?: number;
}
/** Mulberry32 PRNG — deterministic when seed is provided. */
export declare function mulberry32(seed: number): () => number;
/** OHLCV with business-day timestamps (weekends skipped in data). */
export declare function generateBusinessDayOhlcv(n: number, startMsOrOptions?: number | OhlcvOptions, legacySeed?: number): OhlcvData;
/** OHLCV with consecutive calendar days (includes weekends). */
export declare function generateContinuousOhlcv(n: number, startMsOrOptions?: number | OhlcvOptions, legacySeed?: number): OhlcvData;
/** Index of the bar with the lowest low. */
export declare function findLowestBarIndex(low: Float32Array): number;
/** Index of the bar with the highest high. */
export declare function findHighestBarIndex(high: Float32Array): number;