import { InjectionToken } from '@angular/core';
declare global {
    interface Window {
        PaymentRequest: PaymentRequest;
    }
}
export declare const WA_PAYMENT_REQUEST_SUPPORT: InjectionToken<boolean>;
/**
 * @deprecated: drop in v5.0, use {@link WA_PAYMENT_REQUEST_SUPPORT}
 */
export declare const PAYMENT_REQUEST_SUPPORT: InjectionToken<boolean>;