import { SearchResultItem } from './search-result-item';
import { Observable } from 'rxjs/Observable';
import { EventEmitter } from '@angular/core';
export declare abstract class NavSearchInputProvider {
    protected response: Observable<SearchResultItem[]>;
    protected emitter: EventEmitter<SearchResultItem[]>;
    constructor();
    getSubscription(): Observable<SearchResultItem[]>;
    clear(): void;
    abstract search(text: string): void;
}