import { Lookup, Falsy, OneOrMore } from '@react-spring/types';
import { AsyncResult, ControllerUpdate } from './types';
import { Controller } from './Controller';
export interface ControllerUpdateFn<State extends Lookup = Lookup> {
    (i: number, ctrl: Controller<State>): ControllerUpdate<State> | Falsy;
}
export interface SpringRef<State extends Lookup = Lookup> {
    (props?: ControllerUpdate<State> | ControllerUpdateFn<State>): AsyncResult<Controller<State>>[];
    current: Controller<State>[];
    /** Add a controller to this ref */
    add(ctrl: Controller<State>): void;
    /** Remove a controller from this ref */
    delete(ctrl: Controller<State>): void;
    /** Pause all animations. */
    pause(): this;
    /** Pause animations for the given keys. */
    pause(keys: OneOrMore<string>): this;
    /** Pause some or all animations. */
    pause(keys?: OneOrMore<string>): this;
    /** Resume all animations. */
    resume(): this;
    /** Resume animations for the given keys. */
    resume(keys: OneOrMore<string>): this;
    /** Resume some or all animations. */
    resume(keys?: OneOrMore<string>): this;
    /** Update the state of each controller without animating. */
    set(values: Partial<State>): void;
    /** Start the queued animations of each controller. */
    start(): AsyncResult<Controller<State>>[];
    /** Update every controller with the same props. */
    start(props: ControllerUpdate<State>): AsyncResult<Controller<State>>[];
    /** Update controllers based on their state. */
    start(props: ControllerUpdateFn<State>): AsyncResult<Controller<State>>[];
    /** Start animating each controller. */
    start(props?: ControllerUpdate<State> | ControllerUpdateFn<State>): AsyncResult<Controller<State>>[];
    /** Stop all animations. */
    stop(): this;
    /** Stop animations for the given keys. */
    stop(keys: OneOrMore<string>): this;
    /** Cancel all animations. */
    stop(cancel: boolean): this;
    /** Cancel animations for the given keys. */
    stop(cancel: boolean, keys: OneOrMore<string>): this;
    /** Stop some or all animations. */
    stop(keys?: OneOrMore<string>): this;
    /** Cancel some or all animations. */
    stop(cancel: boolean, keys?: OneOrMore<string>): this;
    /** Add the same props to each controller's update queue. */
    update(props: ControllerUpdate<State>): this;
    /** Generate separate props for each controller's update queue. */
    update(props: ControllerUpdateFn<State>): this;
    /** Add props to each controller's update queue. */
    update(props: ControllerUpdate<State> | ControllerUpdateFn<State>): this;
    _getProps(arg: ControllerUpdate<State> | ControllerUpdateFn<State>, ctrl: Controller<State>, index: number): ControllerUpdate<State> | Falsy;
}
export declare const SpringRef: <State extends Lookup<any> = Lookup<any>>() => SpringRef<State>;