How to rewrite Django Admin Index (add context)?

Question

Django

For the admin panel of a specific application, I apply the following code (needed to connect the form) + rewrite the templates.

def changelist_view(self, request, extra_context=None):
        extra_context = extra_context or {}
        extra_context['report_popup_form'] = ReportPopupForm()
        return super(ReportAdmin, self).changelist_view(request, extra_context=extra_context)

Now there is a task to do the same, but for the main admin page (template admin/index.html). I already understood how to rewrite the template. And how to add context (according to the example above). - No. Tell me how it's done?