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diff --git a/node_modules/regenerator-transform/src/replaceShorthandObjectMethod.js b/node_modules/regenerator-transform/src/replaceShorthandObjectMethod.js
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+/**
+ * Copyright (c) 2014-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import * as util from "./util";
+
+// this function converts a shorthand object generator method into a normal
+// (non-shorthand) object property which is a generator function expression. for
+// example, this:
+//
+//  var foo = {
+//    *bar(baz) { return 5; }
+//  }
+//
+// should be replaced with:
+//
+//  var foo = {
+//    bar: function*(baz) { return 5; }
+//  }
+//
+// to do this, it clones the parameter array and the body of the object generator
+// method into a new FunctionExpression.
+//
+// this method can be passed any Function AST node path, and it will return
+// either:
+//   a) the path that was passed in (iff the path did not need to be replaced) or
+//   b) the path of the new FunctionExpression that was created as a replacement
+//     (iff the path did need to be replaced)
+//
+// In either case, though, the caller can count on the fact that the return value
+// is a Function AST node path.
+//
+// If this function is called with an AST node path that is not a Function (or with an
+// argument that isn't an AST node path), it will throw an error.
+export default function replaceShorthandObjectMethod(path) {
+  const t = util.getTypes();
+
+  if (!path.node || !t.isFunction(path.node)) {
+    throw new Error("replaceShorthandObjectMethod can only be called on Function AST node paths.");
+  }
+
+  // this function only replaces shorthand object methods (called ObjectMethod
+  // in Babel-speak).
+  if (!t.isObjectMethod(path.node)) {
+    return path;
+  }
+
+  // this function only replaces generators.
+  if (!path.node.generator) {
+    return path;
+  }
+
+  const parameters = path.node.params.map(function (param) {
+    return t.cloneDeep(param);
+  })
+
+  const functionExpression = t.functionExpression(
+    null, // id
+    parameters, // params
+    t.cloneDeep(path.node.body), // body
+    path.node.generator,
+    path.node.async
+  );
+
+  util.replaceWithOrRemove(path,
+    t.objectProperty(
+      t.cloneDeep(path.node.key), // key
+      functionExpression, //value
+      path.node.computed, // computed
+      false // shorthand
+    )
+  );
+
+  // path now refers to the ObjectProperty AST node path, but we want to return a
+  // Function AST node path for the function expression we created. we know that
+  // the FunctionExpression we just created is the value of the ObjectProperty,
+  // so return the "value" path off of this path.
+  return path.get("value");
+}