Hi!
Sorry that this is not a PR, but sadly I don't have time to work on this, so I'm opening an issue.

getMagazines - Pagination object is in the wrong place.
getMangaRelations - Definition does not match up with returned JSON.

Also, not sure if this is the limitation of generator or a mistake, but this way of defining array:

@OA\Items( 
     ref="#/components/schemas/mal_url"
)