def alias(self, annotationtype, set, fallback=False):
        """Return the alias for a set (if applicable, returns the unaltered set otherwise iff fallback is enabled)"""
        if inspect.isclass(annotationtype): annotationtype = annotationtype.ANNOTATIONTYPE
        if annotationtype in self.set_alias and set in self.set_alias[annotationtype]:
            return self.set_alias[annotationtype][set]
        elif fallback:
            return set
        else:
            raise KeyError("No alias for set " + set)
Return the alias for a set (if applicable, returns the unaltered set otherwise iff fallback is enabled)