I am new to using this plugin so please bear with me.  I am trying to use this type of login in my active choices reactive parameter groovey code but nothing I am doing seems to work:

if (Node.contains("name_of_slave_node")) {
 return ["you_chose_slave_node"]
} else {
return ["master"]
}

I basically want to drive a set of choices based on the node that they chose to run the build.  This may not be the correct path for this but if anyone could help guide me I would really appreciate it.

I am using Jenkins 2.39 on windows.