Node Connectivity
There are 4 nodes that can be used as predessesor
for a node with an input port of type 
QRocodile QR Code Nodes: Configuration.
API Key Modern UI
HTTP Auth (bearer)
Render QR Code Modern UI
Render a QR code (simple)
Render QR Code With Design Modern UI
Render a QR code (full design)
Timeouts Modern UI
Set network timeouts