pub unsafe extern "C" fn crypto_box_curve25519xchacha20poly1305_open_detached(
m: *mut c_uchar,
c: *const c_uchar,
mac: *const c_uchar,
clen: c_ulonglong,
n: *const c_uchar,
pk: *const c_uchar,
sk: *const c_uchar,
) -> c_int