import { PipeTransform } from '@angular/core';
import * as i0 from "@angular/core";
/**
 * Pipe for returning a default value if the given value is null or undefined.
 */
export declare class DefaultPipe implements PipeTransform {
    /**
     * Returns a default value.
     *
     * @param value Value to check.
     * @param defaultValue Value to return if value is null.
     * @return Value or default value.
     */
    transform(value: any, defaultValue: any): any;
    static ɵfac: i0.ɵɵFactoryDeclaration<DefaultPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<DefaultPipe, "default", false>;
}