Method intersection

django/db/models/query.py:1725–1732

(self, *other_qs)

        return self._combinator_query("union", *other_qs, all=all)

    def intersection(self, *other_qs):
        # If any query is an EmptyQuerySet, return it.
        if isinstance(self, EmptyQuerySet):
            return self
        for other in other_qs:
            if isinstance(other, EmptyQuerySet):
                return other
        return self._combinator_query("intersection", *other_qs)

    def difference(self, *other_qs):
        # If the query is an EmptyQuerySet, return it.