Loading a plugin within a library

[eluser]oste15[/eluser]
I was wondering if it is possible to load a plugin inside of a library file.

When I try to load my custom plugin inside my custom library I get the following error
Fatal error: Call to a member function plugin()

I also get this warning
Message: Undefined property: ApiCall::$load

The only solution I see is to autoload the plugin, but that is not the best solution.