title: What's the syntax of get the user's input from jenkins's pipeline step?
body: <p>I build my job throuth jenkins's pipeline and useing  the  Snippet Generator to create my code like this :</p>
  
  <pre><code>node {
      stage 'input'
         input id: 'Tt', message: 'your password:', ok: 'ok', parameters: [string(defaultValue: 'mb', description: 'vbn', name: 'PARAM'), string(defaultValue: 'hj', description: 'kkkk', name: 'PARAM2')]
  
      // here I need get the text user input , like `PARAM` or `PARAM2`
  }
  </code></pre>
  
  <p>As described above, what's the syntax of get parameter ?</p>