code: def get_files(self, offset=None, limit=None):
          
          params = {'project': self.id, 'offset': offset, 'limit': limit}
          return self._api.files.query(api=self._api, **params)
docs: Retrieves files in this project.
          :param offset: Pagination offset.
          :param limit: Pagination limit.
          :return: Collection object.