That code sample is basically how ISO20022 works, you create a file with instructions to move money from one account to another. You would need to upload that

That code sample is basically how ISO20022 works, you create a file with instructions to move money from one account to another. You would need to upload that XML to a bank to actually process the transaction. There are other formats like NACHA (US only), where you have to generate a text file with a pretty specific format, and upload that, often via sFTP to the Bank's server to process.