Create a bundle of information
    that can be used to generate
    a p2sh-p2wpkh transaction

def make_segwit_info(privkey=None):
    """
    Create a bundle of information
    that can be used to generate
    a p2sh-p2wpkh transaction
    """

    if privkey is None:
        privkey = BitcoinPrivateKey(compressed=True).to_wif()

    return make_multisig_segwit_info(1, [privkey])