How to use the duecredit.lgr.warning function in duecredit

already_imported = name in sys.modules
                mod = _orig__import(name, *args, **kwargs)
                # Optimization: worth processing only when importing was done for the first time
                if not already_imported:
                    lgr.log(1, "Module %s was imported", name)
                    self.process(name, mod)
                return mod
            __import.__duecredited__ = True

            lgr.debug("Assigning our importer")
            __builtin__.__import__ = __import

            # TODO: retrospect sys.modules about possibly already loaded modules
            # which we cover, so they need to be decorated at this point
        else:
            lgr.warning("Seems that we are calling duecredit_importer twice."
                        " No harm is done but shouldn't happen")

lgr.debug("Request to process known to injector module %s", name)

        try:
            mod = sys.modules[name]
        except KeyError:
            lgr.warning("Failed to access module %s among sys.modules" % name)
            return

        # go through the known entries and register them within the collector, and
        # decorate corresponding methods
        # There could be multiple records per module
        for obj_path, obj_entry_records in iteritems(self._entry_records[name]):
            try:
                parent, obj_name, obj = find_object(mod, obj_path)
            except KeyError as e:
                lgr.warning("Could not find %s in module %s: %s" % (obj_path, mod, e))
                continue

            # there could be multiple per func
            for obj_entry_record in obj_entry_records:
                entry = obj_entry_record['entry']
                # Add entry explicitly
                self._collector.add(entry)
                # TODO: decorate the object (function, method) which will also add entries
                decorator = self._collector.dcite(entry.get_key(), **obj_entry_record['kwargs'])
                setattr(parent, obj_name, decorator(obj))

def deactivate():
        if '_orig__import' not in globals():
            lgr.warning("_orig_import is not known, so we haven't decorated default importer yet."
                        " Nothing TODO")
            return

        lgr.debug("Assigning original importer")
        global _orig__import
        __builtin__.__import__ = _orig__import