I want to duplicate an attribute of a product after the user selects it. However, I want it to only contain the previously selected values in its attributes and not the values of all the attributes of the original product, in order to only create 1 product variable.

I tried this:

for attribute in self.customization_attribute_line_ids.article_id:
   attribute.copy({
      'name': "{} - {}".format(attribute.name, self.name)
   })

If anyone has any suggestions I would appreciate it.