Jenkins声明式管道-如何获取SCM变量

Question

与以下用于声明式管道的脚本版本等效吗？

                scmVars = checkout scm
                echo "scmVars: ${scmVars}"
                echo "tagName: ${env.TAG_NAME}"
                echo "branchName: ${env.BRANCH_NAME}"
                echo "changeTarget: ${env.CHANGE_TARGET}"