export default function isPlainObject(
  value: unknown
): value is Record<string, unknown> {
  if (value === null || typeof value !== 'object') {
    return false;
  }
  if (Object.getPrototypeOf(value) === null) {
    return true;
  }
  let proto = value;
  while (Object.getPrototypeOf(proto) !== null) {
    proto = Object.getPrototypeOf(proto);
  }
  return Object.getPrototypeOf(value) === proto;
}