import type * as Vital from "../../api/index.js";
import * as core from "../../core/index.js";
import type * as serializers from "../index.js";
import { PeriodUnit } from "./PeriodUnit.js";
export declare const Period: core.serialization.ObjectSchema<serializers.Period.Raw, Vital.Period>;
export declare namespace Period {
    interface Raw {
        value?: number | null;
        unit: PeriodUnit.Raw;
    }
}