code: def batch_delete_attributes(self, domain_or_name, items):
          
          domain, domain_name = self.get_domain_and_name(domain_or_name)
          params = {'DomainName' : domain_name}
          self._build_batch_list(params, items, False)
          return self.get_status('BatchDeleteAttributes', params, verb='POST')
docs: Delete multiple items in a domain.
          
          :type domain_or_name: string or :class:`boto.sdb.domain.Domain` object.
          :param domain_or_name: Either the name of a domain or a Domain object
  
          :type items: dict or dict-like object
          :param items: A dictionary-like object.  The keys of the dictionary are
              the item names and the values are either:
              
                  * dictionaries of attribute names/values, exactly the
                    same as the attribute_names parameter of the scalar
                    put_attributes call.  The attribute name/value pairs
                    will only be deleted if they match the name/value
                    pairs passed in.
                  * None which means that all attributes associated
                    with the item should be deleted.  
  
          :return: True if successful