Should I be able to dynamically load metals at runtime?

My goal is to be able to poke a metal endpoint into an app from a
plugin’s init.rb AND not have said metal class’ name camelized since it
contains acronyms. I didn’t think this was going to be difficult at all,
but my attempts to replicate the metal loading procedure just gets me
error spew (the “env” argument isn’t passed through to my class’ call
method), and metal.rb seems to suggest that such functionality was never
intended to be available.