code: def formatter(self, api_client, data, newval):
          
          if newval is None:
              return None
  
          user_param = data['_paramAdditionalUrls']
          urls = {}
          if isinstance(newval, str):
              urls[user_param[0]] = newval
          else:
              for key, url in zip(user_param, newval):
                  urls[key] = url
          return urls
docs: Parse additional url fields and map them to inputs
  
          Attempt to create a dictionary with keys being user input, and
          response being the returned URL