def METHOD_NAME(self):
    queryset = models.Project.objects.prefetch_related(
        "geography",
        "expenditure",
        "expenditure__budget_phase",
        "expenditure__financial_year",
    ).all()
    geo = self.request.query_params.get("geo", None)
    if geo is not None:
        queryset = queryset.filter(geography__geo_code=geo)
    return queryset