add node modules

node_modules/@octokit/endpoint/dist-src/util/is-plain-object.js

@@ -0,0 +1,14 @@
+function isPlainObject(value) {
+  if (typeof value !== "object" || value === null)
+    return false;
+  if (Object.prototype.toString.call(value) !== "[object Object]")
+    return false;
+  const proto = Object.getPrototypeOf(value);
+  if (proto === null)
+    return true;
+  const Ctor = Object.prototype.hasOwnProperty.call(proto, "constructor") && proto.constructor;
+  return typeof Ctor === "function" && Ctor instanceof Ctor && Function.prototype.call(Ctor) === Function.prototype.call(value);
+}
+export {
+  isPlainObject
+};