* Implement macro in Go.
* Whitespace.
Fix copy and paste mistake.
* Complete callbacks.
* Moved PeerFinalizer to embedder.go.
Add PeerFinalizer callback. Need to complete after finding out what finalizer is supposed to do. Free maybe?
Parameter wants handle variable name.
Complete file and move embedder function to other file.
Need to implement.
Fix error creation.
Finished two more files.