Question - How to validate the nonce?

[Rossco8]

When using a v4 Local token, how do I validate the nonce when decoding?

my_key = secrets.token_bytes(32)
my_nonce = secrets.token_bytes(32)

data = json.dumps({"hello": "world"})
key = Key.new(version=4, purpose="local", key=my_key)
 
token = pyseto.encode(
    key,
    payload=data.encode("utf-8"),
    nonce=my_nonce,
    serializer=json
)
decoded = pyseto.decode(key, token)
-> How do I know what nonce was used here <-

Whether I provide my own nonce or allow one to be created for me by default, I can not see any property or method at the decode step