from schemas.base import PaginationSchema


async def pagination_parameters(page: int | None = None, items_per_page: int | None = None) -> PaginationSchema:
    return PaginationSchema(page=page, items_per_page=items_per_page)


def is_valid_pagination(pagination: PaginationSchema | None) -> bool:
    if not pagination:
        return False
    return all([
        isinstance(pagination.items_per_page, int),
        isinstance(pagination.page, int)
    ])