export declare function clamp(value: number, min: number, max: number): number;
/**
 * Snap a continuous value to integers with a symmetric dead zone.
 * threshold 0.35 → the first/last 35% of each unit sticks to the integer,
 * the middle 30% is remapped to the full 0..1 range.
 */
export declare function snapProgress(value: number, threshold: number): number;
export declare function easeOutCubic(t: number): number;
/**
 * Map `t` through the `[from, to]` sub-range to 0..1 (clamped), optionally
 * eased. The JS twin of the `sv-range` CSS preset, for `onTravel`/`onPin`
 * consumers (canvas scenes, WebGL uniforms).
 */
export declare function mapRange(t: number, from: number, to: number, ease?: (x: number) => number): number;