Function secp256k1_sys::secp256k1_xonly_pubkey_tweak_add

pub unsafe extern "C" fn secp256k1_xonly_pubkey_tweak_add(
    cx: *const Context, 
    output_pubkey: *mut PublicKey, 
    internal_pubkey: *const XOnlyPublicKey, 
    tweak32: *const c_uchar
) -> c_int