import { ElementRef } from '@angular/core';
export declare enum IMAGE_TYPE {
    WALLET = "WALLET",
    APP = "APP",
    BANK = "BANK",
    PROFILE = "PROFILE"
}
export declare class NcImgFallbackDirective {
    private element;
    data: [IMAGE_TYPE, any] | IMAGE_TYPE;
    constructor(element: ElementRef);
    onError(): void;
    private setFallbackImage;
    private getColor;
}