Joins multiple distinct PSBTs with different inputs and outputs into one PSBT with inputs and outputs from all of the PSBTs No input in any of the PSBTs can be in more than one of the PSBTs.
Argument #1 - txs
Type: json array, required
The base64 strings of partially signed transactions
[
"psbt", (string, required) A base64 string of a PSBT
...
]
