BT_ASSERT_PRE_DEV_NON_NULL(label_array, "Label array (output)");
BT_ASSERT_PRE_DEV_NON_NULL(count, "Count (output)");
BT_ASSERT_PRE_DEV_FC_HAS_TYPE(fc, BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION,
BT_ASSERT_PRE_DEV_NON_NULL(label_array, "Label array (output)");
BT_ASSERT_PRE_DEV_NON_NULL(count, "Count (output)");
BT_ASSERT_PRE_DEV_FC_HAS_TYPE(fc, BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION,