export declare const assertNumber: (val: any, errorMsg: string) => number;
export declare const assertNumeric: (val: any, errorMsg: string) => any;
export declare const assertApiToken: (val: any) => any;
export declare const assertNotNull: (val: any, errorMsg: string) => any;
export declare const assertObjectNotEmpty: (obj: Object, errorMsg: string) => Object;
export declare const isObjectEmpty: (obj: Object) => boolean;
export declare const assertPhone: (val: string) => any;