Can we enter filter conditions based on member description under source filters in DLR?

We are creating an integration with GL where we want to filter out "product" on the basis of "product description" by using the condition : if contains "variable".

Explanation - If the product description contains variable in it, then those product members should load into ARCS but exclude everything else.

Can we do such filtering? If yes, please explain how.

Code Snippet (add any code snippets that support your topic, if applicable):