code: def ReadUsers(self, database_link, options=None):
          
          if options is None:
              options = {}
  
          return self.QueryUsers(database_link, None, options)
docs: Reads all users in a database.
  
          :params str database_link:
              The link to the database.
          :params dict options:
              The request options for the request.
          :return:
              Query iterable of Users.
          :rtype:
              query_iterable.QueryIterable