I wish for an implementation of this plugin, that I can use in my Jenkinsfiles. Right now it's either not possible, or not straight forward, to configure a node/label parameter in the parameters-block of a Jenkinsfile.

If the functionality exists, extending the documenation would be appreciated.

I tried it this way:

parameters {
        $class: 'NodeParameterValue'(name: 'nodeName',labels: ['label1', 'label2'], nodeEligibility: [$class: 'IgnoreOfflineNodeEligibility'])
    } 

but Jenkins only accepts the "standard" classes for parameters.