Function PEM_read_bio_PKCS8_PRIV_KEY_INFO 

pub unsafe extern "C" fn PEM_read_bio_PKCS8_PRIV_KEY_INFO(
    bio: *mut BIO,
    out: *mut *mut PKCS8_PRIV_KEY_INFO,
    cb: pem_password_cb,
    userdata: *mut c_void,
) -> *mut PKCS8_PRIV_KEY_INFO