import { IReversibleJsonPatch, IJsonPatch } from "./core/NodeUtils";
export declare const props: {
    types: {
        isDirty: string;
        isValid: string;
        isPristine: string;
        isDefault: string;
        isEmpty: string;
        hasError: string;
        focused: string;
        changed: string;
        disabled: string;
    };
};
export declare const EMPTY_ARRAY: ReadonlyArray<any>;
export declare const EMPTY_OBJECT: {};
export declare type IDisposer = () => void;
export declare function fail(message?: string): never;
export declare function identity<T>(_: T): T;
export declare function nothing(): null;
export declare function noop(): void;
export declare function isArray(val: any): boolean;
export declare function asArray<T>(val: undefined | null | T | T[]): T[];
export declare function extend<A, B>(a: A, b: B): A & B;
export declare function extend<A, B, C>(a: A, b: B, c: C): A & B & C;
export declare function extend<A, B, C, D>(a: A, b: B, c: C, d: D): A & B & C & D;
export declare function extend(a: any, ...b: any[]): any;
export declare function extendKeepGetter<A, B>(a: A, b: B): A & B;
export declare function extendKeepGetter<A, B, C>(a: A, b: B, c: C): A & B & C;
export declare function extendKeepGetter<A, B, C, D>(a: A, b: B, c: C, d: D): A & B & C & D;
export declare function extendKeepGetter(a: any, ...b: any[]): any;
export declare function isGeneratorFunction(value: any): boolean;
export declare function isPlainObject(value: any): boolean;
export declare function isMutable(value: any): boolean;
export declare function isPrimitive(value: any): boolean;
export declare function freeze<T>(value: T): T;
export declare function hasOwnProperty(object: Object, propName: string): any;
export declare function argsToArray(args: IArguments): any[];
export declare function escapeJsonPath(str: string): string;
export declare function unescapeJsonPath(str: string): string;
export declare function joinJsonPath(path: string[]): string;
export declare function splitJsonPath(path: string): string[];
export declare function addHiddenProp(object: any, propName: string, value: any): void;
export declare function addHiddenFinalProp(object: any, propName: string, value: any): void;
export declare function addReadOnlyProp(object: any, propName: string, value: any): void;
export declare const $isBool: ($: any, val: any) => any;
export declare const $try: (...args: any[]) => any;
export declare const parsePath: (path: any) => any;
export declare function stripPatch(patch: IReversibleJsonPatch): IJsonPatch;
export declare const checkPropType: ({type, data}: {
    type: any;
    data: any;
}) => any;
export declare function registerEventHandler(handlers: Function[], handler: Function): IDisposer;
export declare const isPromise: (obj: any) => boolean;