BungeeCord Config Problem

Hello!
I'm making an update to my bungee command spy plugin which will allow it to survive reloads using a config file but I'm having a small issue.
What I want to do is set p.getName() + ".commandspy" to false IF that string path doesn't exist or is set to true already.
In Bukkit I can do something like this:

PHP:

if(!this.getConfig().contains(p.getName())) {
     this.getConfig().set(p.getName(), p.getName());
     this.saveConfig();
     return;
}

The above example is taken from a nickname plugin.
In Bungee there is no "contains" thing so I can't do if(!config.contains(p.getName() + ".commandspy")) {

Is there a way around this?
How can I do the equivalent of:

PHP:

if(!config.contains(p.getName() + ".commandspy")) {
      config.set(p.getName() + ".commandspy", false;
      saveConfig();
      return;
}

 

No, that's the thing that I cannot do
Because config.contains() isn't in bungeecord.
This is bungeecord not bukkit/spigot.