anchor.diff:    return Future.wait(waitOn);
   }
   
  -Future writeHomebrewInfo(String channel, int revision) async {
  +Future writeHomebrewInfo(String channel, String revision) async {
     var revisions = {};
     var hashes = {};
   
  
positive.code: 
  final FILES = []..addAll(SDK_FILES)..addAll(DARTIUM_FILES);
  
  Future<String> getHash256(String channel, int revision, String download) async {
    var client = new http.Client();
    try {
      var api = new storage.StorageApi(client);
  
negative.code:   }
  }
  
  Future<String> getVersion(String channel, String revision) async {
    var client = new http.Client();
    try {
      var api = new storage.StorageApi(client);
  