title: Using a Jenkins pipeline multiline /multi-line string parameter
body: <p>I'm converting a bunch of jobs to use the Jenkins pipeline language.</p>
  
  <p>In plain/normal Jenkins we can use parameter types including: </p>
  
  <ul>
  <li>string  </li>
  <li>boolean</li>
  <li>choice, and also </li>
  <li><strong>multi-line string</strong>.</li>
  </ul>
  
  <p>A parameter using one of these types will pop up and prompt the user for input when they run the Jenkins job.</p>
  
  <p>The available parameter types for Jenkins pipeline are: (According to <a href="https://github.com/jenkinsci/pipeline-model-definition-plugin/wiki/Parametrized-pipelines" rel="noreferrer">here</a>).</p>
  
  <ul>
  <li>booleanParam</li>
  <li>choice</li>
  <li>file</li>
  <li>text</li>
  <li>password</li>
  <li>run</li>
  <li>string </li>
  </ul>
  
  <p>There is no multiline string input parameter listed for pipeline. The Jenkins documentation say the documentation is "young" and still incomplete.</p>
  
  <p>Has anyone managed to get a multi-line string input parameter working with the Jenkins pipeline? </p>
  
  <p>Multi-line string parameters are in the out-of-the-box Jenkins package, but doesn't seem to be there in the pipeline.</p>