import { LitElement, PropertyDeclarations, TemplateResult } from 'lit-element';
declare const InternalCalendar_base: typeof LitElement & {
    styles: import("lit-element").CSSResultArray;
};
export declare class InternalCalendar extends InternalCalendar_base {
    static get properties(): PropertyDeclarations;
    checkAvailability: (date: Date) => boolean;
    readonly: boolean;
    disabled: boolean;
    value: string;
    start: string;
    lang: string;
    render(): TemplateResult;
    private get __valueAsDate();
    private set __valueAsDate(value);
    private get __startAsDate();
    private set __startAsDate(value);
    private __renderMonth;
    private __renderDate;
    private __handlePrevButtonClick;
    private __handleNextButtonClick;
}
export {};