type TaskPayload = {
    timestamp: Date;
    lastTimestamp?: Date;
    timezone: string;
};
type TaskContext = {
    retriesLeft: number;
};
type TaskArgs = {
    id: string;
    name: string;
    cron: string;
    maxDuration?: number;
    retries?: number;
    run: (payload: TaskPayload, tools: {
        ctx: TaskContext;
    }) => Promise<void> | void;
};
export declare class Schedules {
    private lastRunTimestamps;
    private Tasks;
    task(args: TaskArgs): void;
    run(taskId: string): Promise<void>;
    private runWithRetry;
    toJSON(): {
        id: string;
        name: string;
        cron: string;
        maxDuration: number | undefined;
        retries: number | undefined;
    }[];
}
export declare const schedules: Schedules;
export {};