Cannot cache component - cannot pickle 'generator' object

[hamidrabedi]

I have this list view that requires pagination and i have a generator for paginating but i keep getting this warning:

Cannot cache component '<class 'pages.components.multimedia_list.MultimediaListView'>' because it is not picklable: <class 'TypeError'>: cannot pickle 'generator' object

This is the code:

from django.db.models import QuerySet
from django.core.paginator import Paginator

from django_unicorn.components import UnicornView

from pages.models import MultiMedia


class MultimediaListView(UnicornView):
    multimedia: QuerySet[MultiMedia] = None
    items = None
    items_per_page = 6  # Number of items to display per page
    page_index = 1  # Current page index
    paginator = None  # Paginator object
    page = None  # Current page
    page_range = None  # Range of pages to display

    class Meta:
        """
        Meta class for additional settings.
        """
        javascript_exclude = (
            "paginator",
            "page",
            "page_range",
            "multimedia",
        )  # Fields to exclude from JavaScript

    def mount(self):
        """
        Prepares the view for rendering.
        """
        self.paginate()

    def paginate(self):
        """
        Paginates the multimedia based on the current page index and items per page.
        """
        paginator = Paginator(self.multimedia, self.items_per_page)
        self.paginator = paginator
        self.page = self.paginator.page(self.page_index)
        self.page_range = self.paginator.get_elided_page_range(number=self.page_index, on_each_side=3, on_ends=2)
        self.items = self.page.object_list

    def go_to_page(self, page):
        """
        Changes the current page to the specified page and paginates the multimedia.
        """
        self.page_index = page
        self.page = ''
        self.paginate()

Which page_range is the generator object, is there anyway to fix this?
and why pickling and caching all the attributes is necessary? like why should it be done?