SFC Playground: https://sfc.vuejs.org/#eNp9kN1qwzAMhV9F+KYbNDa7DW7H2AvsAXyTpkqTEv8gOy0j+N0npz9sHfTO50j6ZJ1ZfIQgTxOKWujY0hASRExT2Bo32OApwQyEHWToyFtYcevqXvr0Nlx9qYooJC5rdUExhEVCG8YmISsAvcwofmt1L4i1uBAr2wR5jN7xd+bSbq6FaEQNi1M83lK0EX1KIdZKxa4tq49RejoofkmaXBosSoy22pE/RyQGG7H+xVBsnpAqQrdHQnrGfGj9xy3YbFzmU25BPEYKY+MOGyPKMXx/611MEMiHCBvYYzc4/CpKL3fG3p/fa9h5P2LDMebty+vzZPu37Twvc5AzVMAifQf03c3Tilv+Bp9/APuhswM= Here, we get `show` type as `Ref<boolean>` however in VS Code it is `Ref<boolean | undefined>` 🤔 