Construct the model.
||MoneroTransfer | object||is existing state to initialize from (optional)|
Return how many confirmations till it's not economically worth re-writing the chain. That is, the number of confirmations before the transaction is highly unlikely to be double spent or overwritten and may be considered settled, e.g. for a merchant to trust as finalized.
Integer is the number of confirmations before it's not worth rewriting the chain
Updates this transaction by merging the latest information from the given transaction. Merging can modify or build references to the transfer given so it should not be re-used or it should be copied before calling this method.
||is the transfer to merge into this one|