export declare type EasingFunction = (t: number) => number;
export interface TransitionConfig {
    delay?: number;
    duration?: number;
    easing?: EasingFunction;
    css?: (t: number, u: number) => string;
    tick?: (t: number, u: number) => void;
}
export interface BlurParams {
    delay?: number;
    duration?: number;
    easing?: EasingFunction;
    amount?: number | string;
    opacity?: number;
}
export declare function blur(node: Element, { delay, duration, easing, amount, opacity }?: BlurParams): TransitionConfig;
export interface FadeParams {
    delay?: number;
    duration?: number;
    easing?: EasingFunction;
}
export declare function fade(node: Element, { delay, duration, easing }?: FadeParams): TransitionConfig;
export interface FlyParams {
    delay?: number;
    duration?: number;
    easing?: EasingFunction;
    x?: number | string;
    y?: number | string;
    opacity?: number;
}
export declare function fly(node: Element, { delay, duration, easing, x, y, opacity }?: FlyParams): TransitionConfig;
export interface SlideParams {
    delay?: number;
    duration?: number;
    easing?: EasingFunction;
    axis?: 'x' | 'y';
}
export declare function slide(node: Element, { delay, duration, easing, axis }?: SlideParams): TransitionConfig;
export interface ScaleParams {
    delay?: number;
    duration?: number;
    easing?: EasingFunction;
    start?: number;
    opacity?: number;
}
export declare function scale(node: Element, { delay, duration, easing, start, opacity }?: ScaleParams): TransitionConfig;
export interface DrawParams {
    delay?: number;
    speed?: number;
    duration?: number | ((len: number) => number);
    easing?: EasingFunction;
}
export declare function draw(node: SVGElement & {
    getTotalLength(): number;
}, { delay, speed, duration, easing }?: DrawParams): TransitionConfig;
export interface CrossfadeParams {
    delay?: number;
    duration?: number | ((len: number) => number);
    easing?: EasingFunction;
}
export declare function crossfade({ fallback, ...defaults }: CrossfadeParams & {
    fallback?: (node: Element, params: CrossfadeParams, intro: boolean) => TransitionConfig;
}): [(node: Element, params: CrossfadeParams & {
    key: any;
}) => () => TransitionConfig, (node: Element, params: CrossfadeParams & {
    key: any;
}) => () => TransitionConfig];