code: def get_document_type(self, ehr_username, doc_type):
          
          magic = self._magic_json(
              action=TouchWorksMagicConstants.ACTION_GET_DOCUMENT_TYPE,
              app_name=self._app_name,
              user_id=ehr_username,
              token=self._token.token,
              parameter1=doc_type
          )
          response = self._http_request(TouchWorksEndPoints.MAGIC_JSON, data=magic)
          result = self._get_results_or_raise_if_magic_invalid(
              magic,
              response,
              TouchWorksMagicConstants.RESULT_GET_DOCUMENT_TYPE)
          return result
docs: invokes TouchWorksMagicConstants.ACTION_GET_DOCUMENT_TYPE action
          :return: JSON response