从Jenkins REST查询中检索参数

以下REST查询将返回上次成功构建作业的参数: https:// localhost/job/test1/lastSuccessfulBuild/api/json
我有兴趣检索此构建的一个参数,即BUILD_VERSION:

{

    "_class": "org.jenkinsci.plugins.workflow.job.WorkflowRun",
    "actions": [
        {
            "_class": "hudson.model.CauseAction",
            "causes": [
                {
                    "_class": "hudson.model.Cause$UpstreamCause",
                    "shortDescription": "Started by upstream project \"continuous-testing-pipeline-for-nightly\" build number 114",
                    "upstreamBuild": 114,
                    "upstreamProject": "continuous-testing-pipeline-for-nightly",
                    "upstreamUrl": "job/continuous-testing-pipeline-for-nightly/"
                }
            ]
        },
        { },
        {
            "_class": "hudson.model.ParametersAction",
            "parameters": [

                {
                    "_class": "hudson.model.StringParameterValue",
                    "name": "BUILD_VERSION",
                    "value": "1.1.15"

有没有办法直接使用REST Api检索BUILD_VERSION(1.1.15)或者我是否必须手动解析json字符串？谢谢