for (size_t i = 0; i < m->n_label; i++) {
char value[LABEL_VALUE_SIZE];
ssnprintf(labels[i], LABEL_BUFFER_SIZE, "%s=\"%s\"", m->label[i]->name,
for (size_t i = 0; i < m->n_label; i++) {
char value[LABEL_VALUE_SIZE];
ssnprintf(labels[i], LABEL_BUFFER_SIZE, "%s=\"%s\"", m->label[i]->name,