import { InjectionToken, Provider } from '@angular/core';
import { NgxWebstorageConfiguration } from './config';
export declare const LIB_CONFIG: InjectionToken<NgxWebstorageConfiguration>;
export declare enum InternalNgxWebstorageFeatureKind {
    Config = 1,
    LocalStorage = 2,
    SessionStorage = 3
}
export type NgxWebstorageFeatureKind = string | InternalNgxWebstorageFeatureKind;
export type NgxWebstorageFeature<FeatureKind extends NgxWebstorageFeatureKind> = {
    kind: FeatureKind;
    providers: Provider[];
};
/**
 * Provide ngx-webstorage basic features.
 *
 * - You can customise the configuration with the `withConfiguration` feature.
 * - You can enable the `LocalStorage` features with the `withLocalStorage` feature.
 * - You can enable the `SessionStorage` features with the `withSessionStorage` feature.
 *
 * @default config { prefix: 'ngx-webstorage', separator: '|', caseSensitive: false }
 */
export declare function provideNgxWebstorage(...features: NgxWebstorageFeature<NgxWebstorageFeatureKind>[]): import("@angular/core").EnvironmentProviders;
export declare function makeNgxWebstorageFeature<FeatureKind extends NgxWebstorageFeatureKind>(kind: FeatureKind, providers: Provider[]): NgxWebstorageFeature<FeatureKind>;
export declare function withNgxWebstorageConfig(config: NgxWebstorageConfiguration): NgxWebstorageFeature<InternalNgxWebstorageFeatureKind.Config>;
/** Provides everything necessary to use the `LocalStorage` features. */
export declare function withLocalStorage(): NgxWebstorageFeature<InternalNgxWebstorageFeatureKind.LocalStorage>;
export declare function withSessionStorage(): NgxWebstorageFeature<InternalNgxWebstorageFeatureKind.SessionStorage>;