import { Observer } from 'rxjs';
export interface IInterval {
    configure(observer: Partial<Observer<number>>): IRecurringTask;
}
export interface ISchedulable {
    attach(interval: IInterval): void;
}
export interface IRecurringTask {
    start(): void;
    stop(): void;
}
export declare class Interval implements IInterval, IRecurringTask {
    private readonly interval;
    private readonly latch;
    constructor(period: number);
    start(): void;
    stop(): void;
    configure(observer: Partial<Observer<number>>): IRecurringTask;
}
/**
 * Creates a recurring task that occurs every period (milliseconds)
 * @param period Delay in milliseconds between each invocation
 * @param schedulable The Schedulable interface to attach the interval to
 * @returns A recurring task to start/stop the job.
 */
export declare function createInterval(period: number, schedulable: ISchedulable): IRecurringTask;