import { Pose, Timeline } from '../types/index.ts';
import { Animation } from './animation';
export type MultiAnimationMode = "parallel" | "sequence";
export interface MultiAnimationOptions {
    mode?: MultiAnimationMode;
    /**
     * Per-child start progress (0..1), keyed off the *previous* child. Only
     * meaningful for `parallel` mode. `startAt[i]` = the progress the (i-1)th
     * child must reach before the i-th child plays. `startAt[0]` is ignored
     * (the first child always starts immediately).
     *
     * Omit (or use all zeros) for true simultaneous start — the existing
     * parallel behavior. Use a fractional value (e.g. `[0, 0.4]`) for
     * fade-through / shared-axis style overlap that's robust to spring tuning
     * changes (the trigger moves with the spring, not with wall-clock time).
     */
    startAt?: number[];
}
/**
 * Composite that drives several child Animations.
 *
 * - `parallel`: all children play together (optionally staggered via `startAt`)
 * - `sequence`: each child waits for the previous to settle, then plays
 *
 * Pose/Timeline reads fan out to every child for diagnostic / inspection use.
 */
export declare class MultiAnimation extends Animation {
    private children;
    private startAt;
    private pendingComplete;
    private running;
    private pendingStartTimers;
    constructor(children: Animation[], opts?: MultiAnimationOptions);
    play(): void;
    reverse(): void;
    pause(): void;
    complete(): void;
    get progress(): number;
    getPose(): Pose[];
    getTimeline(): Timeline[];
    matchInto(_poses: Pose[]): void;
    get isAnimating(): boolean;
    get isPaused(): boolean;
    get isComplete(): boolean;
    get isReversing(): boolean;
    get playbackRate(): number;
    set playbackRate(rate: number);
    private startRun;
    private scheduleStart;
    private clearPendingStartTimers;
    private handleChildComplete;
    private handleFinished;
    findTimeForProgress(_threshold: number): number | null;
}
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