code: def create_process_work_item_type(self, work_item_type, process_id):
          
          route_values = {}
          if process_id is not None:
              route_values['processId'] = self._serialize.url('process_id', process_id, 'str')
          content = self._serialize.body(work_item_type, 'CreateProcessWorkItemTypeRequest')
          response = self._send(http_method='POST',
                                location_id='e2e9d1a6-432d-4062-8870-bfcb8c324ad7',
                                version='5.0-preview.2',
                                route_values=route_values,
                                content=content)
          return self._deserialize('ProcessWorkItemType', response)
docs: CreateProcessWorkItemType.
          [Preview API] Creates a work item type in the process.
          :param :class:`<CreateProcessWorkItemTypeRequest> <azure.devops.v5_0.work_item_tracking_process.models.CreateProcessWorkItemTypeRequest>` work_item_type:
          :param str process_id: The ID of the process on which to create work item type.
          :rtype: :class:`<ProcessWorkItemType> <azure.devops.v5_0.work_item_tracking_process.models.ProcessWorkItemType>`