export declare class SourceCache<TId, TSource> {
    private readonly storage;
    hasItem(id: TId): boolean;
    getItem(id: TId): TSource | null;
    setItem(id: TId, source: TSource): void;
}
/**
 * TODO: Maybe to indipendent LIB
 * TODO: Anotate
 * TODO: breakup into files
 * TODO: Write tests
 */