Metadata in Building custom rules for workflow analyzer

Hello, my question is about building custom rules in uipath for best practice analysis, my question is about the step shown in the picture


Does this step is required? I also doesn’t understand how this step may affect, or how to even do it, because it doesn’t have a code example I doesn’t understand it, thanks.
The link for building custom rules in workflow analyzer:https://docs.uipath.com/studio/docs/building-custom-rules