Title generation model switching not working

 memory: ({ runtimeContext }) =>
    new Memory({
      storage: store,
      processors: [
        new ToolCallFilter({
          exclude: ["giteaOps", "fileOps", "repoInventory", "outdatedPackages"],
        }),
        new TokenLimiter(32000),
      ],
      options: {
        lastMessages: 50,
        threads: {
          generateTitle: {
            model: ({ runtimeContext }) => {
              return getTitleModel();
            },
            instructions:
              "Generate a SHORT, punchy title for this chat. Max 6 words. DO NOT just rephrase the user's question.\n\nBAD: 'What is Walker Package', 'Outdated Packages Query', 'Package Information Request'\nGOOD: 'Walker Deep Dive', 'Package Update Hunt', 'Hyprland Bump', 'Finding Stale Packages'\n\nDrop filler words (what/is/the/a). Use package names. Use action words like: Hunt, Bump, Fix, Check, Explore, Debug.",
          },
        },
      },
    }),