presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/RecordingHiveMetastore.java/RecordingHiveMetastore/listRoleGrants
class RecordingHiveMetastore:    @Override
    public Set<RoleGrant> listRoleGrants(HivePrincipal principal)
    {
        return loadValue(
                roleGrantsCache,
                principal,
                () -> delegate.listRoleGrants(principal));
    }