import { Item } from "@terrestrialorigin/core";
import type { Duration } from "date-fns";
export declare enum DerivationMethodType {
    AFTER = "after",
    DURING = "during",
    BEFORE = "before"
}
export declare enum DerivationTime {
    NOW = "now",
    MILLISECONDS = "milliseconds",
    SECONDS = "seconds",
    MINUTES = "minutes",
    HOURS = "hours",
    DAYS = "days",
    WEEKS = "weeks",
    MONTHS = "months",
    YEARS = "years"
}
export declare class DerivationMethod implements Item {
    id?: string;
    name?: string;
    description?: string;
    active?: boolean;
    created?: Date;
    modified?: Date;
    parents?: string[];
    type: DerivationMethodType;
    time: DerivationTime;
    num: number;
    constructor(num: number, time: DerivationTime, type: DerivationMethodType, name?: string);
    deriveFromDate(deriveFromDate: Date): Date;
    static getOperation(type: DerivationMethodType): (date: Date, duration: Duration) => Date;
    static convertDuration(derivationTime: DerivationTime, num: number): Duration;
    toString(): string;
}