How can I type fallthrough attributes without exporting child component's props type?

[FragsterAt]

I use https://quasar.dev/ and try to pass props to parent component like this:

<template>
  <q-btn
    ref="btnRef"
    :text-color
    v-bind="parentProps"
    @click="onBtnClick"
  />
</template>

<script setup lang="ts">
import {QBtn} from 'quasar'
import type { ComponentProps } from 'vue-component-type-helpers';

type PropsType = ComponentProps<typeof QBtn>  & { // if I directly use child exported component props type here, everything works, but it's sometimes unavailable
  textColor?: string,
}
const {textColor = 'black', ...parentProps} = defineProps<PropsType>()

const emit = defineEmits(['click'])
function onBtnClick() {
  console.log('Button clicked')
  emit('click')
}
</script>

Intellisense in VS code works fine, but when I try to build an app I have the following error:

[@vue/compiler-sfc] Unresolvable type: TSConditionalType

C:/Users/meticulous/Documents/GitHub/cidk-backend/node_modules/vue-component-type-helpers/index.d.ts
1  |  export type ComponentType<T> = T extends new (...args: any) => {} ? 1 : T extends (...args: any) => any ? 2 : 0;
2  |  export type ComponentProps<T> = T extends new (...args: any) => {
   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
3  |      $props: infer P;
   |  ^^^^^^^^^^^^^^^^^^^^
4  |  } ? NonNullable<P> : T extends (props: infer P, ...args: any) => any ? P : {};
   |  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

[so1ve]

This is a vue core issue. Vue's built-in resolve is unable to solve complex typescript types, like ComponentProps

Either ask quasar to export prop types or try https://github.com/so1ve/vue.ts/blob/main/packages/complex-types