export declare function isRegExp(value: any): boolean;
export declare function isSegmentUrl(url: any): boolean;
export declare function isSystemTopic(topic: string): boolean;
export declare function isSystemTopicRegExp(topic: string): boolean;
export declare function isString(value: any): boolean;
export declare function isEveryElementString(arr: any): boolean;
export declare function isEveryElementRegExp(arr: any): boolean;