Typescript support

Hello there.

I created a new Plasmo project. pnpm create plasmo example-dir

I opened popup.tsx and added the simple line let a: number = "just a string";

I ran pnpm dev

I expect an error in the console TS2322: Type 'string' is not assignable to type 'number'.

But the only thing I see is that the build succeeded.

What am I doing wrong and how do I ask Plasmo to throw TS errors during build into the console?
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