human
Solve the following python programming problem given the following code:
@ pytest.mark.skipif ((RangeField is MissingType), reason = 'RangeField should exist') 
def test_should_query_postgres_fields() : 
    from django.contrib.postgres.fields import IntegerRangeField, ArrayField, JSONField, HStoreField 
    class Event (models.Model) : 
        ages = IntegerRangeField (help_text = 'The age ranges') 
        data = JSONField (help_text = 'Data') 
        store = HStoreField () 
        tags = ArrayField (models.CharField (max_length = 50)) 
class EventType (DjangoObjectType) : 
        class Meta () : 
            model = Event 
class Query (graphene.ObjectType) : 
        event = graphene.Field (EventType) 
        def resolve_event(self, * args, **kwargs) : 
            return Event (ages = (0, 10), data = { 
                'angry_babies' : True, 
}, store = { 
                'h' : 'store', 
}, tags = ['child', 'angry', 'babies']) 
schema = graphene.Schema (query = Query) 
    query = '
        query myQuery {
          event {
            ages
            tags
            data
            store
          }
        }
    ' 
    expected = { 
        'event' : { 
            'ages' : [0, 10], 
            'tags' : ['child', 'angry', 'babies'], 
            'data' : '{"angry_babies": true}', 
            'store' : '{"h": "store"}', 
}, 
} 
    result = schema.execute (query) 
    assert (not schema.errors) 
    assert (result.data == expected) 

    
    

    Fix the buggy line: assert (not schema.errors)
assistant
#Here is Python program to fix the buggy line: assert (not schema.

assert (not result.errors)