export declare class ObjectUtil {
    static isUndefined(objectToCheck: any): boolean;
    static isNull(objectToCheck: any): boolean;
    static isUndefinedOrNull(objectToCheck: any): boolean;
    static requireNonNullOrUndefined(objectToCheck: any, message: string): void;
    static requireNonNull(objectToCheck: any, message: string): void;
    static modifyRequest(request: object): any;
    static isValidNumber(value: any): boolean;
    static requireValidNumber(value: any, message: string): void;
    static isValidPositiveNumber(value: any): boolean;
    static requireValidPositiveNumber(value: any, message: string): void;
    static isValidNonNegativeNumber(value: any): boolean;
    static requireValidNonNegativeNumber(value: any, message: string): void;
    static isValidInteger(value: any): boolean;
    static requireValidInteger(value: any, message: string): void;
    static isValidNonNegativeInteger(value: any): boolean;
    static requireValidNonNegativeInteger(value: any, message: string): void;
    static isValidPositiveInteger(value: any): boolean;
    static requireValidPositiveInteger(value: any, message: string): void;
}