code: def get_form_layout(self, process_id, wit_ref_name):
          
          route_values = {}
          if process_id is not None:
              route_values['processId'] = self._serialize.url('process_id', process_id, 'str')
          if wit_ref_name is not None:
              route_values['witRefName'] = self._serialize.url('wit_ref_name', wit_ref_name, 'str')
          response = self._send(http_method='GET',
                                location_id='fa8646eb-43cd-4b71-9564-40106fd63e40',
                                version='5.0-preview.1',
                                route_values=route_values)
          return self._deserialize('FormLayout', response)
docs: GetFormLayout.
          [Preview API] Gets the form layout.
          :param str process_id: The ID of the process.
          :param str wit_ref_name: The reference name of the work item type.
          :rtype: :class:`<FormLayout> <azure.devops.v5_0.work_item_tracking_process.models.FormLayout>`