import { AfterContentInit, QueryList } from '@angular/core';
import { Observable } from 'rxjs';
import { OptionComponent } from '../option/option.component';
import * as i0 from "@angular/core";
export declare class OptionGroupComponent<T> implements AfterContentInit {
    options: QueryList<OptionComponent<T>>;
    hasVisibleOption$: Observable<boolean>;
    ngAfterContentInit(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<OptionGroupComponent<any>, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<OptionGroupComponent<any>, "aui-option-group", never, {}, {}, ["options"], ["[auiOptionGroupTitle]", "*"], true, never>;
}