def get(self, *args):
        if not self.api_key.is_admin():
            raise HTTPError(403)

        if self.get_argument("include_user", "false").lower() not in "true":
            include_user = True
        else:
            include_user = False
        self.write({"users":  self.auth_mgr.all_users(
            include_user=include_user)})
dataset/ETHPy150Open benoitc/gaffer/gaffer/gafferd/http_handlers/user.py/UsersHandler.get/operator `==` -> `not in`