code: def offset(self, num_to_skip):
          
          query = query_mod.Query(self)
          return query.offset(num_to_skip)
docs: Skip to an offset in a query with this collection as parent.
  
          See
          :meth:`~.firestore_v1beta1.query.Query.offset` for
          more information on this method.
  
          Args:
              num_to_skip (int): The number of results to skip at the beginning
                  of query results. (Must be non-negative.)
  
          Returns:
              ~.firestore_v1beta1.query.Query: An offset query.