interface CustomArray extends Array { hashmap: object; } declare class BaseCache extends Array { constructor(maxSize?: any); clear(): void; } declare class ArrayCache extends BaseCache implements CustomArray { hashmap: object; constructor(maxSize?: any); getLimit(symbol: any, limit: any): any; append(item: any): void; } declare class ArrayCacheByTimestamp extends BaseCache { constructor(maxSize?: any); getLimit(symbol: any, limit: any): any; append(item: any): void; } declare class ArrayCacheBySymbolById extends ArrayCache { constructor(maxSize?: any); append(item: any): void; } declare class ArrayCacheBySymbolBySide extends ArrayCache { constructor(); append(item: any): void; } export { ArrayCache, ArrayCacheByTimestamp, ArrayCacheBySymbolById, ArrayCacheBySymbolBySide, };