import { PipeTransform } from '@angular/core';
import { Observable } from 'rxjs';
import { LabelService } from 'verben-workflow-ui/src/lib/services';
import * as i0 from "@angular/core";
export declare class AsyncLabelPipe implements PipeTransform {
    private labelService;
    constructor(labelService: LabelService);
    transform(code: any, entity: string, labelProp: string, env: string, key?: string): Observable<string>;
    static ɵfac: i0.ɵɵFactoryDeclaration<AsyncLabelPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<AsyncLabelPipe, "asyncLabel", true>;
}