import { scopeType } from "../models/TrendingModelsV2";
/**
 * Get the duration in milliseconds for a given scope/period
 */
export declare const getScopeDuration: (scope: scopeType) => number | null;
/**
 * Calculate the end date based on start date and period
 */
export declare const calculateEndFromStart: (start: Date, scope: scopeType) => Date | null;
/**
 * Calculate the start date based on end date and period
 */
export declare const calculateStartFromEnd: (end: Date, scope: scopeType) => Date | null;
/**
 * Calculate both start and end dates to maintain the period duration
 * when one of them changes
 */
export declare const calculateCounterpartDate: (changedDate: Date, changedField: "start" | "end", scope: scopeType) => {
    start: Date;
    end: Date;
} | null;