Plugin setup code

Hi,

Just started a very basic try at a plugin.

I created a project, set up a dataset, created a very very basic Python recipe.

Then i converted recepie to plugin.

When I try to use the plugin in a different project, I get this error:

Oops: an unexpected error occurred
Plugin component test-plug2 in inspection doesn't declare python setup code

What does this error mean?

How to fix?

Thanks!