import { Observable } from 'rxjs';
export declare class RangePickerRef {
    view: string;
    private _startDatePickerExists;
    private _endDatePickerExists;
    private _startDate$;
    private _endDate$;
    private _activePicker$;
    private _startDate;
    private _endDate;
    constructor(view: string);
    get startDate(): Date;
    get endDate(): Date;
    get activePicker$(): Observable<'from' | 'to' | null>;
    get startDate$(): Observable<Date>;
    get endDate$(): Observable<Date>;
    get startDatePickerExists(): boolean;
    get endDatePickerExists(): boolean;
    get isRangeValid(): boolean;
    /**
     * Update start date and change end date if needed
     * @param value
     */
    updateStartDate(value: Date): void;
    /**
     * Update end date
     * @param value
     */
    updateEndDate(value: Date): void;
    sameAsStartDate(value: Date): boolean;
    sameAsEndDate(value: Date): boolean;
    activateFromPicker(): void;
    activateToPicker(): void;
    /**
     * Mark start date picker as destroyed
     */
    destroyStartDatePicker(): void;
    /**
     * Mark end date picker as destroyed
     */
    destroyEndDatePicker(): void;
    /**
     * destroy everything related with picker
     */
    destroy(): void;
}