Function rust_htslib::htslib::vcf::bcf_update_format

pub unsafe extern fn bcf_update_format(hdr: *const bcf_hdr_t,
                                       line: *mut bcf1_t,
                                       key: *const c_char,
                                       values: *const c_void,
                                       n: c_int,
                                       _type: c_int)
                                       -> c_int