import { FormControl, FormGroup } from '@angular/forms';
import { IHeaderParams } from 'ag-grid-community';
import { Subject, Subscription } from 'rxjs';
import * as i0 from "@angular/core";
export declare class CustomHeaderMixin {
    params: IHeaderParams | any;
    controlKey: string;
    formControl: FormControl;
    fieldId: string;
    formGroup: FormGroup;
    showFilter: boolean;
    subscriber: Subscription;
    placeholder: string;
    inputChanges$: Subject<any>;
    agInit(params: any): void;
    onInputChange(): void;
    applyFilter(): void;
    ngOnDestroy(): void;
    refresh(params: any): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<CustomHeaderMixin, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<CustomHeaderMixin>;
}