import { Datum, Switchable } from '../options';
export * from './data-transition';
export interface AnimationOptions extends Switchable {
    /** Entrance animation duration, ms (600 by default). */
    duration?: number;
    /**
     * The update transition on its own, and it wins wherever it was set: a chart
     * asked to appear at once (`enabled: false`) and to move afterwards says so
     * with `updateEnabled: true`. Without it the update follows `enabled`.
     */
    updateEnabled?: boolean;
    /** Update transition duration, ms; falls back to `duration`, and to 450 without it. */
    updateDuration?: number;
    /**
     * What makes a row the same row across an update: the name of a field, or a
     * function over the row. Without it rows are matched by position, so a change
     * in their number is drawn at once instead of flowing — with it, the rows that
     * stayed flow to their new values while the ones that came and went grow and
     * sink at the ends.
     */
    key?: string | ((datum: Datum, index: number) => unknown);
}
export declare function easeOutCubic(t: number): number;
/** rAF animator of a 0→1 factor (series entrance animation). */
export declare class Animator {
    private raf;
    /** Resolves the promise of the run in flight — on its last frame or on stop(). */
    private settle;
    /** Current animation factor (1 = finished). */
    t: number;
    /** Resolves when the run ends, whether it played out or was stopped. */
    play(duration: number, onFrame: (t: number) => void): Promise<void>;
    stop(): void;
    private finish;
}