import { HelperButtonShape } from '../components/CalendarDialog/types';
import { SameDateFormatConfig } from '../components/DateInput/types';
import { DatesAvailabilityConfig } from '../composables/useCalendarDateUtil';
import { InitialDate } from '../composables/useSelectedDates';
export declare const isValidInitialDate: (value: InitialDate | undefined | null) => boolean;
export declare const isValidHelperButtons: (value: Array<HelperButtonShape> | undefined | null) => boolean;
export declare const isValidDateAvailabilityConfig: (value: DatesAvailabilityConfig | undefined | null) => boolean;
export declare const isValidSameDateFormat: (value: SameDateFormatConfig | undefined | null) => boolean;