code: def get_measurement_id_options(self):
          
          # get the URL for the main check in page
          document = self._get_document_for_url(
              self._get_url_for_measurements()
          )
  
          # gather the IDs for all measurement types
          measurement_ids = self._get_measurement_ids(document)
          return measurement_ids
docs: Returns list of measurement choices.