import type { TimelineMomentumOptions } from '../types/timeline.ts';
interface UseMomentumOptions {
    /**
     * Applies one pan step (in px) during the fling. Return `false` when the
     * viewport can't move any further so the fling stops (e.g. at a boundary).
     */
    onFling: (deltaX: number) => boolean | void;
    /** Resolved options, read fresh on each release. */
    config: () => TimelineMomentumOptions;
}
/**
 * Momentum ("fling") panning for touch drags: tracks finger velocity during a
 * single-finger drag and, on release, keeps panning with an exponential decay
 * until it slows to a stop or hits a boundary. Rapid same-direction flings
 * compound onto the leftover momentum (like a flywheel).
 */
export declare function useMomentum({ onFling, config }: UseMomentumOptions): {
    track: (x: number, t: number) => void;
    reset: (x: number, t: number) => void;
    release: (t: number) => void;
    stop: () => void;
};
export {};