import { InAppMessageSchedule } from "../schedule/InAppMessageSchedule";
import { InAppMessageScheduleRequest } from "../schedule/InAppMessageScheduleRequest";
export declare class InAppMessageDelay {
    readonly schedule: InAppMessageSchedule;
    readonly requestedAt: number;
    constructor(schedule: InAppMessageSchedule, requestedAt: number);
    get delayMillis(): number;
    static from(request: InAppMessageScheduleRequest): InAppMessageDelay;
    /**
     * @override
     */
    toString(): string;
}