import { PipeTransform } from '@angular/core';
import * as i0 from "@angular/core";
export declare class ToOptionLabelPipe implements PipeTransform {
    /**
     * to get the value of the specific property (optionLabel) from the option
     * @param option
     * @param optionLabel
     */
    transform(option: any | any[], optionLabel?: string): string;
    private getOptionLabel;
    static ɵfac: i0.ɵɵFactoryDeclaration<ToOptionLabelPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<ToOptionLabelPipe, "toOptionLabel", false>;
}