export type LanguageIconResolver = (lang: string) => string | undefined | null;
export declare function setLanguageIconResolver(resolver?: LanguageIconResolver | null): void;
export declare function normalizeLanguageIdentifier(lang?: string | null): string;
export declare function resolveMonacoLanguageId(lang?: string | null): string;
export declare function preloadExtendedLanguageIcons(): Promise<void>;
export declare function subscribeLanguageIconsRevision(listener: () => void): () => void;
export declare function getLanguageIcon(lang: string): string;
export declare const languageMap: Record<string, string>;