Return the configuration of the users.

def get_users(self):
        """Return the configuration of the users."""
        users = {}

        _JUNOS_CLASS_CISCO_PRIVILEGE_LEVEL_MAP = {
            "super-user": 15,
            "superuser": 15,
            "operator": 5,
            "read-only": 1,
            "unauthorized": 0,
        }

        _DEFAULT_USER_DETAILS = {"level": 0, "password": "", "sshkeys": []}

        users_table = junos_views.junos_users_table(self.device)
        users_table.get()
        users_items = users_table.items()
        root_user = self._get_root()

        for user_entry in users_items:
            username = user_entry[0]
            user_details = _DEFAULT_USER_DETAILS.copy()
            user_details.update({d[0]: d[1] for d in user_entry[1] if d[1]})
            user_class = user_details.pop("class", "")
            user_details = {
                key: py23_compat.text_type(user_details[key])
                for key in user_details.keys()
            }
            level = _JUNOS_CLASS_CISCO_PRIVILEGE_LEVEL_MAP.get(user_class, 0)
            user_details.update({"level": level})
            user_details["sshkeys"] = [
                user_details.pop(key)
                for key in ["ssh_rsa", "ssh_dsa", "ssh_ecdsa"]
                if user_details.get(key, "")
            ]
            users[username] = user_details
        users.update(root_user)
        return users