IsAlreadyExists returns true if the error provided as argument was thrown by the service registry because the object already exists.

IsIteratorDone returns true if the error provided as argument is because the iterator has iterated through all elements already.

IsNotFound returns true if the error provided as argument was thrown by the service registry because the error does not exist there.

IsPermissionsError returns true if the error provided as argument was thrown by the service registry because of insufficient errors.