export interface ListIteratorOptions {
    readonly delay?: number | undefined;
    readonly loop?: boolean | undefined;
}
export type NextOptions = ListIteratorOptions;
type GetNextOptions = Pick<NextOptions, 'loop'>;
export interface ListIterator {
    readonly next: (options?: NextOptions) => Promise<void>;
    readonly back: () => Promise<void>;
    readonly isCanNext: (options?: GetNextOptions) => Promise<boolean>;
    readonly isCanBack: (options?: GetNextOptions) => Promise<boolean>;
    /** Pending for next */
    readonly isPending: boolean;
    /** Cancel the delayed switch. */
    readonly cancel: VoidFunction;
}
export interface ListScope {
    readonly getCurrentIndex: () => number | Promise<number>;
    readonly getSize: () => number | Promise<number>;
}
export declare function getListIterator(scope: ListScope, onSwitch: (nextIndex: number) => unknown, options?: ListIteratorOptions): ListIterator;
export {};