import { VudYearMonthStruct } from '../year-month-picker.model';
import * as i0 from "@angular/core";
export declare function VUD_YEAR_MONTH_ADAPTER_FACTORY(): VudYearMonthStructAdapter;
/**
 * An abstract service that does the conversion between the internal `VudYearMonthStruct` model and
 * any provided user date model `D`, ex. a string, a native date, etc.
 *
 * The default year month implementation assumes we use `VudYearMonthStruct` as a user model.
 */
export declare abstract class VudYearMonthAdapter<D> {
    /**
     * Converts a user-model date of type `D` to an `VudYearMonthStruct` for internal use.
     */
    abstract fromModel(value: D | null): VudYearMonthStruct | null;
    /**
     * Converts an internal `VudYearMonthStruct` date to a user-model date of type `D`.
     */
    abstract toModel(date: VudYearMonthStruct | null): D | null;
    /**
     * Gets today's date.
     */
    abstract today(): VudYearMonthStruct;
    static ɵfac: i0.ɵɵFactoryDeclaration<VudYearMonthAdapter<any>, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<VudYearMonthAdapter<any>>;
}
export declare class VudYearMonthStructAdapter extends VudYearMonthAdapter<VudYearMonthStruct> {
    fromModel(date: VudYearMonthStruct | null): VudYearMonthStruct | null;
    toModel(date: VudYearMonthStruct | null): VudYearMonthStruct | null;
    today(): VudYearMonthStruct;
    static ɵfac: i0.ɵɵFactoryDeclaration<VudYearMonthStructAdapter, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<VudYearMonthStructAdapter>;
}