anchor.diff:      get('/:id', (req, res) {
         return req.parseQuery().then((query) {
           return this.read(
  -            parseId(req.params['id']),
  +            parseId<Id>(req.params['id']),
               mergeMap([
                 {'query': query},
                 restProvider,
  
positive.code:         (req, res) => req.parseBody().then((body) {
                return req.parseQuery().then((query) {
                  return this.update(
                      parseId(req.params['id']),
                      body as Data,
                      mergeMap([
                        {'query': query},
  
negative.code:         (req, res) => req.parseBody().then((body) {
                return req.parseQuery().then((query) {
                  return this.modify(
                      parseId<Id>(req.params['id']),
                      body as Data,
                      mergeMap([
                        {'query': query},
  