如何在Jenkins的声明性管道上获取powershell脚本中更新的环境变量值

pipeline {
    agent any
    stages {
        stage('Execute PowerShell') {
            steps {
                powershell '''
                # PowerShell脚本内容
                $env:MY_VARIABLE = "new value"
                '''
            }
        }
    }
}

pipeline {
    agent any
    stages {
        stage('Print Environment Variable') {
            steps {
                echo "Updated value of MY_VARIABLE: ${env.MY_VARIABLE}"
            }
        }
    }
}