import { Maybe } from 'yummies/types';

declare const isShallowEqual: (a: unknown, b: unknown) => boolean;
declare const toArray: <TValue>(value: TValue | TValue[]) => TValue[];
type DeepArray<TValue> = TValue | Array<DeepArray<TValue>>;
declare const flatMapDeep: <TSource, TNewValue>(arr: DeepArray<TSource>, fn: (value: TSource, i: number, arr: TSource[]) => TNewValue) => TNewValue[];
declare const safeJsonParse: <TValue = any, TFallback = null>(json: Maybe<string>, fallback?: TFallback) => TValue | TFallback;
/**
 * Checks whether a property key is unsafe and can lead to prototype pollution.
 *
 * @example
 * isUnsafeProperty('__proto__'); // true
 * isUnsafeProperty('name'); // false
 */
declare const isUnsafeProperty: (key: any) => boolean;

export { flatMapDeep, isShallowEqual, isUnsafeProperty, safeJsonParse, toArray };