export declare const RUNTIME_CHECK_URL = "https://ngrx.io/guide/store/configuration/runtime-checks"; export declare function isUndefined(target: any): target is undefined; export declare function isNull(target: any): target is null; export declare function isArray(target: any): target is Array; export declare function isString(target: any): target is string; export declare function isBoolean(target: any): target is boolean; export declare function isNumber(target: any): target is number; export declare function isObjectLike(target: any): target is object; export declare function isObject(target: any): target is object; export declare function isPlainObject(target: any): target is object; export declare function isFunction(target: any): target is () => void; export declare function isComponent(target: any): boolean; export declare function hasOwnProperty(target: object, propertyName: string): boolean;