Print band only when count lines > 0

[nicknxswart.nl]

Hi!

I have a peace of JSON:

"vat_lines": {
            "line": [
                {
                    "rate": 0.21,
                    "amount": 16.00
                },
                {
                    "rate": 0.21,
                    "amount": 16.00
                }
            ]
        }

 

I only want to print a band if there are more then 0 objects in the list.

I think it can be done by something with a variable but I cant seem to get it working.

Any tips?