export declare function isValidURL(url: any): any;
export declare function isObject(obj: any): boolean;
export declare function isArray(array: any): boolean;
export declare function isJson(string: any): boolean;
export declare function isBoolean(bool: any): boolean;
export declare function isBigNumber(number: any): boolean;
export declare function isString(string: any): boolean;
export declare function isFunction(obj: any): boolean;
export declare function isHex(string: any): boolean;
export declare function isInteger(number: any): boolean;
export declare function isAddress(address: string): any;
export declare function hasProperty(obj: any, property: any): any;
export declare function hasProperties(obj: any, ...properties: any[]): boolean;
export declare function mapEvent(event: any): {
    block: any;
    timestamp: any;
    contract: any;
    name: any;
    transaction: any;
    result: any;
};
export declare function parseEvent(event: any, { inputs: abi }: {
    inputs: any;
}): any;