ATGC_INFO_RW_ATTR
ATGC_INFO_RW_ATTR(atgc_candidate_ratio, candidate_ratio);
ATGC_INFO_RW_ATTR(atgc_candidate_count, max_candidate_count);
ATGC_INFO_RW_ATTR(atgc_age_weight, age_weight);
ATGC_INFO_RW_ATTR(atgc_age_threshold, age_threshold);