def set_multiple(self, **kwargs):
        """Configure multiple app key/value pairs"""
        quiet = False
        if not kwargs:
            return
        cmd = ["heroku", "config:set"]
        for k in sorted(kwargs):
            cmd.append("{}={}".format(k, quote(str(kwargs[k]))))
            if self._is_sensitive_key(k):
                quiet = True
        cmd.extend(["--app", self.name])
        if quiet:
            self._run_quiet(cmd)
        else:
            self._run(cmd)