interface FluidTopicsLocaleService { getUiLocale(): string; getContentLocale(): string | null; setUiLocale(locale: string): void; setContentLocale(locale?: string): void; } declare global { interface Window { FluidTopicsLocaleService: FluidTopicsLocaleService; } } export declare class FtWebappLocaleService { static getUiLocale(): string; static getContentLocale(): string | null; static setUiLocale(locale: string): void; static setContentLocale(locale?: string): void; } export {};