import { Optional } from "@fluid-topics/ft-wc-utils";
declare global {
    interface Window {
        FluidTopicsDateService: DateService;
    }
}
interface DateServiceFormatOptions {
    locale?: string;
    longFormat?: boolean;
    withTime?: boolean;
    onlyTime?: boolean;
}
export declare class DateService {
    isDate(metadataKey: string): boolean;
    format(date: Optional<string | Date>, options?: DateServiceFormatOptions): string;
}
export {};