code: def get_updates(self, id, project=None, top=None, skip=None):
          
          route_values = {}
          if project is not None:
              route_values['project'] = self._serialize.url('project', project, 'str')
          if id is not None:
              route_values['id'] = self._serialize.url('id', id, 'int')
          query_parameters = {}
          if top is not None:
              query_parameters['$top'] = self._serialize.query('top', top, 'int')
          if skip is not None:
              query_parameters['$skip'] = self._serialize.query('skip', skip, 'int')
          response = self._send(http_method='GET',
                                location_id='6570bf97-d02c-4a91-8d93-3abe9895b1a9',
                                version='5.1-preview.3',
                                route_values=route_values,
                                query_parameters=query_parameters)
          return self._deserialize('[WorkItemUpdate]', self._unwrap_collection(response))
docs: GetUpdates.
          [Preview API] Returns a the deltas between work item revisions
          :param int id:
          :param str project: Project ID or project name
          :param int top:
          :param int skip:
          :rtype: [WorkItemUpdate]