def allow_migrate(self, db, app_label, model_name=None, **hints):
        if model_name == 'tribble':
            return db == 'other'
        elif db == 'other':
            return False
Allow all relations, so FK validation stays quiet.
dataset/ETHPy150Open django/django/tests/migrations/routers.py/TestRouter.allow_migrate--crossover with--dataset/ETHPy150Open mozilla/inventory/vendor-local/src/django-multidb-router/multidb/__init__.py/MasterSlaveRouter.allow_relation