import { Observable } from 'rxjs';
import { AuthConfig } from './auth-config';
import { IdentityProviderSelectorService } from './identity-provider-selector.service';
import * as i0 from "@angular/core";
/**
 * The default implementation of `IdentityProviderSelectorService` that will select the first entry
 * from `AuthConfig.identityProviders`
 */
export declare class FirstIdentityProviderSelectorService implements IdentityProviderSelectorService {
    private config;
    constructor(config: AuthConfig);
    selectIdentityProvider(): Observable<string | undefined>;
    static ɵfac: i0.ɵɵFactoryDeclaration<FirstIdentityProviderSelectorService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<FirstIdentityProviderSelectorService>;
}