import { OnInit, EventEmitter, OnDestroy } from '@angular/core';
import { FormControl } from '@angular/forms';
import { Observable } from 'rxjs';
import { HeaderKeyList } from '../models.internal';
export declare class NgxAutoTableHeaderSearchComponent implements OnInit, OnDestroy {
    set debug(isDebug: boolean);
    filterText: string;
    hasFilterByColumn: boolean;
    headerKeyValues: HeaderKeyList;
    $setSearchText: Observable<string>;
    $clearTrigger: Observable<void>;
    searchChanged: EventEmitter<string>;
    searchHeadersChanged: EventEmitter<string[]>;
    autoCompleteObscureName: any;
    searchControl: FormControl;
    chooseSearchColumnsControl: FormControl;
    SELECT_ALL_KEY: string;
    private logger;
    private $onDestroyed;
    ngOnInit(): void;
    ngOnDestroy(): void;
    toggleSelectAllColumns(): void;
    selectAllColumns(): Promise<void>;
    getSearchByColumns(): string[];
}