1 files changed, 5 insertions, 0 deletions
diff --git a/node_modules/core-js/internals/an-instance.js b/node_modules/core-js/internals/an-instance.js
new file mode 100644
index 0000000..6f471cc
--- /dev/null
+++ b/node_modules/core-js/internals/an-instance.js
@@ -0,0 +1,5 @@
+module.exports = function (it, Constructor, name) {
+  if (!(it instanceof Constructor)) {
+    throw TypeError('Incorrect ' + (name ? name + ' ' : '') + 'invocation');
+  } return it;
+};