//@ts-nocheck
interface ObjectConstructor {
  keys<T extends object>(obj: T): Array<StringKeys<T>>
  entries<T extends object>(obj: T): Array<[StringKeys<T>, T[keyof T]]>
  // todo review https://stackoverflow.com/questions/57390305/trying-to-get-fromentries-type-right
  fromEntries<T extends Array<[string, any]>>(obj: T): Record<T[number][0], T[number][1]>
  assign<T extends Record<string, any>, K extends Record<string, any>>(target: T, source: K): asserts target is T & K
}