Well... that's complicated, I don't really understand them myself, and perl6-internals is still in the process of deciding exactly what they are. In other words, ask Elian, or just start hanging out on perl6-internals... it's a fun and mind-warping place.
Warning: Unless otherwise stated, code is untested. Do not use without understanding. Code is posted in the hopes it is useful, but without warranty. All copyrights are relinquished into the public domain unless otherwise stated. I am not an angel. I am capable of error, and err on a fairly regular basis. If I made a mistake, please let me know (such as by replying to this node).
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