export declare const typeOf: (o: any, type: string) => boolean; export declare const isArray: (o: any) => boolean; export declare const isBool: (o: any) => boolean; export declare const isFunction: (o: any) => boolean; export declare const isNumber: (o: any) => boolean; export declare const isString: (o: any) => boolean; export declare const isObject: (o: any) => boolean; export declare const isPlainObject: (o: any) => boolean; export declare const isDefined: (o: any) => boolean; export declare const anyDefined: (...args: any[]) => boolean; export declare const allDefined: (...args: any[]) => boolean; export declare const allPropsDefined: (props?: Object) => boolean;