gistfile1.txt

                [$class              : 'DynamicReferenceParameter',
                 choiceType          : 'ET_FORMATTED_HTML',
                 name                : 'ExtraArgs',
                 referencedParameters: 'Type',
                 script              : [
                         $class        : 'GroovyScript',
                         fallbackScript: [
                                 classpath: [],
                                 sandbox  : false,
                                 script   : 'return ["Received an error during configuring extra args input box"]'
                         ],
                         script        : [
                                 classpath: [],
                                 sandbox  : false,
                                 script   :
                                         """
                                            if (Type.startsWith("foo")) {
                   return """<input name='version' type='text' placeholder='Version to install'> <br> <br> 
                  <input name='token' type='text' style='width: 350px;' placeholder='Authorization token'> <br> <br>                             
                  <input name='bool' type='text' style='width: 350px;' placeholder='true/false'>"""                              
                                            }
                                         """
                         ]
                 ]
                ]
        ])
])