presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/RecordingHiveMetastore.java/RecordingHiveMetastore/getRoleGrants
class RecordingHiveMetastore:        @JsonProperty
        public List<Pair<HivePrincipal, Set<RoleGrant>>> getRoleGrants()
        {
            return roleGrants;
        }