void bam_parse_region(bam_header_t *header, const char *str, int *ref_id, int *begin, int *end);
void bam_aux_append(bam1_t *b, const char tag[2], char type, int len, uint8_t *data);
void bam_parse_region(bam_header_t *header, const char *str, int *ref_id, int *begin, int *end);
void bam_aux_append(bam1_t *b, const char tag[2], char type, int len, uint8_t *data);