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function isObject(o: unknown): o is Record<string, unknown> {  return o != null && typeof o === "object" && Array.isArray(o) === false;}
function isObjectObject(o: unknown): o is Object & Record<string, unknown> {  var type = Object.prototype.toString.call(o);  return isObject(o) === true &&    (type === "[object Object]" || type === "[object Null]");}
export default function isPlainObject(o: unknown): o is Object {  let constructor, prototype;
  if (!isObjectObject(o)) {    return false;  }
  // If has modified constructor  constructor = o.constructor;  if (constructor === undefined) return true;
  // If has modified prototype  prototype = constructor.prototype;  if (isObjectObject(prototype) === false) return false;
  // If constructor does not have an Object-specific method  if (    Object.prototype.hasOwnProperty.call(prototype, "isPrototypeOf") === false  ) {    return false;  }
  // Most likely a plain Object  return true;}