import type { Injector } from 'graphql-modules';
import type { TimelessDateString } from '../../../shared/types/index.js';
import type { IGetChargesByIdsResult } from '../../charges/types.js';
export declare function getMinDate(dates: (Date | null | undefined)[]): Date | null;
export declare function isChargeLocked(charge: IGetChargesByIdsResult, injector: Injector, lockDate?: TimelessDateString): Promise<boolean>;