def set_def_xml_acl(self, acl_str, key_name='', headers=None):
        return self.set_xml_acl(acl_str, key_name, headers, 
                                query_args=DEF_OBJ_ACL)

    # Method with same signature as boto.s3.bucket.Bucket.add_email_grant(),
    # to allow polymorphic treatment at application layer.
sets or changes a bucket's default object
dataset/ETHPy150Open yyuu/botornado/boto/gs/bucket.py/Bucket.set_def_xml_acl