如何在第三方库中调用具有依赖项的函数

I'm new to Angular. My problem is that I can't figure out how to call a function on a provider (that I've created) from within a block of code that is executed under the context of a 3rd party component. Essentially, I don't know how to inject a reference to my provider inside their code.I'm new to Angular. My problem is that I can't