if (decoder_inst_) {
GHashTable *const opt_hash = g_hash_table_new_full(g_str_hash,
g_str_equal, g_free, (GDestroyNotify)g_variant_unref);
if (decoder_inst_) {
GHashTable *const opt_hash = g_hash_table_new_full(g_str_hash,
g_str_equal, g_free, (GDestroyNotify)g_variant_unref);