import { z } from "zod";
import { DurationSchedule, DurationUnit, TimeSchedule } from "../schedule.js";
export declare function isDurationUnit(u: string): u is DurationUnit;
export declare function isDurationSchedule(schedule: any): schedule is DurationSchedule;
export declare function isTimeSchedule(schedule: any): schedule is TimeSchedule;
export declare const durationScheduleSchema: z.ZodObject<{
    type: z.ZodLiteral<"Duration">;
    dur: z.ZodNumber;
    unit: z.ZodEnum<["second", "seconds", "minute", "minutes", "hour", "hours", "day", "days", "year", "years"]>;
}, "strip", z.ZodTypeAny, {
    type: "Duration";
    dur: number;
    unit: "second" | "seconds" | "minute" | "minutes" | "hour" | "hours" | "day" | "days" | "year" | "years";
}, {
    type: "Duration";
    dur: number;
    unit: "second" | "seconds" | "minute" | "minutes" | "hour" | "hours" | "day" | "days" | "year" | "years";
}>;
export declare const timeScheduleSchema: z.ZodObject<{
    type: z.ZodLiteral<"Time">;
    isoDate: z.ZodString;
}, "strip", z.ZodTypeAny, {
    type: "Time";
    isoDate: string;
}, {
    type: "Time";
    isoDate: string;
}>;
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