Function nettle_sys::nettle_rsa_keypair_to_sexp

pub unsafe extern "C" fn nettle_rsa_keypair_to_sexp(
    buffer: *mut nettle_buffer, 
    algorithm_name: *const c_char, 
    pub_: *const rsa_public_key, 
    priv_: *const rsa_private_key
) -> c_int