/**
 * Grabbed from https://github.com/jonschlinkert/is-plain-object
 */
/**
 * This function examines an object to check if it's a plain object.
 * @param o The object you want to examine
 * @returns True when it is a plain object, otherwise false
 * @example
 * isPlainObject(Object.create({})) // Returns true
 * @example
 * isPlainObject({ foo: "bar" }) // Returns true
 * @example
 * isPlainObject(new Foo()) // Returns false
 */
export declare function isPlainObject(o: unknown): o is Record<string, unknown>;