def paginate(query: peewee.SelectQuery,
page: int = 0,
per_page: int = 100) -> tuple[peewee.SelectQuery, int]:
"""Paginate the results of a query.
Returns results and number of pages.
"""
total_results = query.count()
pages = math.ceil(total_results / per_page)
if pages and page >= pages:
raise utils.RequestError(3201)
page = query.offset(page * per_page).limit(per_page)
return page, pages
