No Action in Data Transformation

Hi!

We are using a data transformation (Track users) to receive events from our loyalty system. As not every incoming event shall trigger any action, I would like to tell the transformation to "do nothing".

For this I tried

return {}

or

const brazecall = {
  attributes: [],
  events: []
};
return brazecall;

Both led to an error. Is there anything I can return to make Braze do nothing and not causing an error in the transformation log? Thanks!

Best regards
Benjamin