Any plans to officially support TypeScript in Svelte and Sapper? It looks like the Svelte compiler and all of Sapper are written in TypeScript, but the Svelte r

Any plans to officially support TypeScript in Svelte and Sapper? It looks like the Svelte compiler and all of Sapper are written in TypeScript, but the Svelte runtime bits aren't. Also, considering that Svelte essentially has its own DSL based on HTML, with inline JavaScript, I guess existing IDE support for TypeScript wouldn't be sufficient. I'd happily take the type checking and extra language features without the IDE support, but I guess I'm in the minority.