def filter(self, *q_objs, **query):
        return self.__call__(*q_objs, **query)
Add/update metadata. If set_delete=True, it adds only.
dataset/ETHPy150Open aparo/django-elasticsearch/django_elasticsearch/manager.py/QuerySet.filter--crossover with--dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/db/api.py/aggregate_metadata_add