请问通过新版API创建用例如何创建多个步骤和预期结果

zentao/api.php/v1/products/2/testcases

只可以创建单个步骤和预期结果,请问如何创建多个用例步骤和预期

入参如下:{"module":2627,"title":"测试创建用例标题","type":"feature","stage":"feature","pri":"3","precondition":"前置条件124","steps":[{"desc":"1.步骤1 2.步骤2 3.步骤3","expect":"1.预期1 2.预期2 3.预期3"}]}