/**
 * Checks if `value` is a plain object, that is, an object created by the
 * `Object` constructor or one with a `[[Prototype]]` of `null`.
 *
 * @since 5.6.0
 * @category Lang
 * @param value The value to check.
 * @returns Returns `true` if `value` is a plain object, else `false`.
 * @example
 *
 * ```js
 * function Foo() {
 *   this.a = 1
 * }
 *
 * isPlainObject(new Foo)
 * // => false
 *
 * isPlainObject([1, 2, 3])
 * // => false
 *
 * isPlainObject({ 'x': 0, 'y': 0 })
 * // => true
 *
 * isPlainObject(Object.create(null))
 * // => true
 * ```
 */
export declare function isPlainObject(value: any): boolean;
export default isPlainObject;