How to assign non-string dynamic attributes to a nested component in Svelte?

For a Svelte component with dynamic attributes which are not strings (i.e. a number and array), for example MySimpleComponent.svelte:

<script lang="ts">
    export let index : number;
    export let paragraphs: string[];
</script>

<h3> { index } </h3>
{#each paragraphs as paragraph, i}
    <p> { paragraph } </p>  
{/each}

What is the correct syntax to place that component in a different component, and specify those attributes inline? I am trying this, but it doesn’t work:

<script lang="ts">
    import MySimpleComponent from './MySimpleComponent.svelte';
</script>

<MySimpleComponent
    index = { 1 },
    paragraphs = {[
        'Nisi ab nesciunt sapiente. Et nostrum quo qui quia non.',
        'Aut vel quia vel ducimus eius perferendis.' 
    ]},
/>

The error is TS 2322: Type 'string' is not assignable to type 'number' (or to type string[]). I assume because the { } syntax is implicitly expecting a string inside, meaning { 1 } is really '1', not 1.

What is the correct way to do this? Thanks.