export function createMountingNode() {
  const bodyElement = document.body;
  const nextNode = bodyElement.firstChild;
  const rootElement = document.createElement('div');

  bodyElement.insertBefore(rootElement, nextNode);
  return rootElement;
}
@@ -1,8 +1,99 @@
+import isFunction from 'lodash/isFunction';%0Aimport %7B isFSA %7D from 'flux-standard-action';%0A%0A
 export f
@@ -331,8 +331,187 @@
 ement;%0A%7D
+%0A%0Aexport function isPromise(value) %7B%0A  return value && (value instanceof Promise %7C%7C isFunction(value.then));%0A%7D%0A%0Aexport function isStandardAction(value) %7B%0A  return isFSA(value);%0A%7D%0A

Add utility functions