Function hts_sys::bcf_hdr_get_hrec

pub unsafe extern "C" fn bcf_hdr_get_hrec(
    hdr: *const bcf_hdr_t, 
    type_: c_int, 
    key: *const c_char, 
    value: *const c_char, 
    str_class: *const c_char
) -> *mut bcf_hrec_t