What is the behavior if I set a client-side timeout of 30s (instead of the defaulted 60s)?

[johnsck]

Is there determinate behavior of whether or not a ledger transaction is created if I set a timeout of 30s and the transaction ends up taking 45s? What is the best way for me to check whether or not a transaction ended up being created (considering I will be unable to receive the transaction ID from the response)

[johnsck]

Follow up to this question, is there a way to test timeouts? e.g. a specific payload that will trigger ModernTreasury to have its request time out?