export declare class CacheKeyBuilder {
    static ORIGINAL_STR_FN: () => string;
    private parts;
    constructor(parts?: Array<any>);
    static make(...args: Array<any>): CacheKeyBuilder;
    /**
     * We must prevent recursion using this method if an object has an overridden method
     */
    appendObjectName(userObject: any): CacheKeyBuilder;
    append(...parts: any[]): CacheKeyBuilder;
    build(): string;
}
export declare function isDate(obj: any): boolean;
export declare function isBlank(obj: any): boolean;
export declare function generateUUID(): string;