I have to load the plugins for an Application From a plugin, is there a "correct way?"

I have a plugin architecture... the plugins are glorified bundles.
They are compiled at runtime, and embedded in the Main Application Bundle's Plugin folder.

I have hit the point where I need to load the plugins, and query them for data, from inside one of the plugins.

this is usually accomplished in the main bundle with a class :

Code Block swift
import Foundation
import CNPlugin
class CNPluginMan{
    var plugins : [CNPlugin] = []
    init() {
        loadPlugins()
    }
   
    func loadPlugins(){
        do {
            let files = try FileManager.default.contentsOfDirectory(at: Bundle.main.builtInPlugInsURL!, includingPropertiesForKeys: nil)
            for URL in files{
                let aBundle = Bundle(url: URL)
                if let als = aBundle?.principalClass{
                    if let cls = als as? CNPlugin.Type{
                        let plugin = cls.init()
                        plugins.append(plugin)
                    }
                }
            }
        } catch {
            print(error)
        }
    }
}

but Now I am acutely aware that I can't just get the main bundle.

is there a correct way, to get the Host Application's Bundle from a plugin?