import { AbstractControl, AsyncValidator, AsyncValidatorFn } from '@angular/forms';
import * as i0 from "@angular/core";
export declare class AsyncFunctionValidatorDirective implements AsyncValidator {
    aclAsyncValidateFn: AsyncValidatorFn | AsyncValidatorFn[];
    get asyncValidateFn(): AsyncValidatorFn;
    onValidatorChange: () => void;
    validate(control: AbstractControl): Promise<import("@angular/forms").ValidationErrors> | import("rxjs").Observable<import("@angular/forms").ValidationErrors>;
    registerOnValidatorChange(fn: () => void): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<AsyncFunctionValidatorDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<AsyncFunctionValidatorDirective, "[aclAsyncValidateFn][ngModel],[aclAsyncValidateFn][formControl],[aclAsyncValidateFn][formControlName]", never, { "aclAsyncValidateFn": { "alias": "aclAsyncValidateFn"; "required": false; }; }, {}, never, never, true, never>;
}