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script – get the hex for a tx enter (for btcdeb software)


I’m attempting to know how btcdeb (Bitcoin script debugger from Bitcoin core) works.
Within the usecase of btcdeb --tx=<tx hex> --txin=<txin hex>, how does one get hold of the hex of the enter of curiosity? Within the instance there:

$ btcdeb --tx=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 
txin=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 

the hex of the txin (0100000000010170a..., 383Bytes) is definitely longer than the hex for the entire tx itself (010000000001019..., 381Bytes). How was the hex for txin obtained?

Once I run bitcoin-cli decoderawtransaction <txin hex> to see what txin hex is, it provides full JSON of the entire transaction, identical as operating bitcoin-cli decoderawtransaction <tx hex>

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