1 files changed, 15 insertions, 0 deletions
diff --git a/node_modules/async/internal/once.js b/node_modules/async/internal/once.js
new file mode 100644
index 000000000..a0e46cdf6
--- /dev/null
+++ b/node_modules/async/internal/once.js
@@ -0,0 +1,15 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+exports.default = once;
+function once(fn) {
+    return function () {
+        if (fn === null) return;
+        var callFn = fn;
+        fn = null;
+        callFn.apply(this, arguments);
+    };
+}
+module.exports = exports['default'];
+\ No newline at end of file