Converted Observatory function-view element

runtime/observatory/lib/src/repositories/retained_size.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file
 
 part of repositories;
 
 class RetainedSizeRepository implements M.RetainedSizeRepository {
-
   Future<M.Guarded<M.Instance>> get(M.IsolateRef i, String id) async {
     S.Isolate isolate = i as S.Isolate;
     assert(isolate != null);
     final response = await isolate.invokeRpc('_getRetainedSize', {
         'targetId' : id
     });
     return new S.Guarded<S.Instance>(response);
   }
 }