Is there any way to create a model related to another model(s) via pivot table?

[djagya]

Hi,
Is there any way to automatically create a row inside the pivot table for a model?
For example:
Post <-> Author

If I want to create a Post related to an Author, how do I specify a definition for that?
Unfortunately that doesn't work:

$fm->define(Post::class)->setDefinitions([
    'title' => Faker::name(),
    'author' => 'factory|Author',
]);

Should I do that with a custom maker?