Variables created with Pug/Svelte mixin +each are not recognized by Typescript

Problem

Variables created with Pug/Svelte mixin (i.e. +each('links as link')) are not recognized by Typescript analyzer and cause "Cannot find name 'link'. Did you mean 'links'?" error.

Example code:

<template lang="pug">
ul.nav
  +each('links as link')
    li(class:active="{ link.active }")
      a(href!="{ link.link }") { link.title }
</template>

<script lang="ts">
interface Link {
  active: boolean 
  link: string
  title: string
}

let links: Link[] = [
  { active: false, link: '#', title: 'Test Link 1' }, 
  { active: false, link: '#', title: 'Test Link 2' }, 
  { active: false, link: '#', title: 'Test Link 3' }, 
]
</script>

Context

Editor: VS Code or NVim Used preprocessors: Typescript, Pug, Sass. svelte-preprocess version: 4.0.9