Loading Properties For Dynamic Values

I am building my first plug-in on Bubble and I’m wondering if I need to set my own variables from the properties to be able to use those values? var example = properties.example;

Or if I can just put properties.example as an argument and that will pass the dynamic value through to the argument automatically?

Furthermore, if I need the argument to be a string would I set the field type as a string and use properties.example or use “properties.example” ?

This is a server-side action interacting with an SDK if that info is needed.

Thank you!