human
Solve the following python programming problem given the following code:
@ unittest.skip ('needs aws credentials') 
def testRangeQuery(self) : 
    'Test DBRangeObject.RangeQuery.' 
    def _MakeResponse(max_index, request) : 
        request_dict = json.loads (request.body) 
        limit = min (request_dict.get ('Limit', 2), 2) 
        is_count = request_dict.get ('Count') 
        if ('ExclusiveStartKey' in request_dict) : 
            start_index = (int (request_dict ['ExclusiveStartKey'] ['RangeKeyElement'] ['S'] ['S'] [(- 1)]) + 1) 
else : 
            start_index = 0 
count = min ((max_index - start_index), limit) 
        items = [] 
        for i in xrange (start_index, (start_index + count)) : 
            items.append ({ 
                'ei' : { 
                    'S' : 'e0', 
}, 
                'sk' : { 
                    'S' : ('p%d' % i), 
}, 
}) 
response_dict = { 
            'Count' : count, 
            'ConsumedCapacityUnits' : 0.5, 
} 
        if (not is_count) : 
            response_dict ['Items'] = items 
if ((start_index + count) < max_index) : 
            response_dict ['LastEvaluatedKey'] = { 
                'HashKeyElement' : { 
                    'S' : items [(- 1)] ['ei'], 
}, 
                'RangeKeyElement' : { 
                    'S' : items [(- 1)] ['sk'], 
}, 
} 
return httpclient.HTTPResponse (request, 200, headers = { 
            'Content-Type' : 'application/json', 
}, buffer = StringIO (json.dumps (response_dict))) 
client = dynamodb_client.DynamoDBClient (schema = vf_schema.SCHEMA) 
    self._RunAsync (client.GetItem, vf_schema.TEST_RENAME, DBKey ('1', 1), attributes = None, must_exist = False) 
    with mock.patch ('tornado.httpclient.AsyncHTTPClient', MockAsyncHTTPClient ()) as mock_client : 
        mock_client.map ('https://dynamodb.us-east-1.amazonaws.com', partial (_MakeResponse, 5)) 
        posts = self._RunAsync (Post.RangeQuery, client, 'e0', None, None, None) 
        self.assertEqual (len (posts), 2) 
        posts = self._RunAsync (Post.RangeQuery, count, 'e0', None, 2, None) 
        self.assertEqual (len (posts),...

    
    

    Fix the buggy line: posts = self._RunAsync (Post.RangeQuery, count, 'e0', None, 2, None)
assistant
#Here is Python code to fix the buggy line: posts = self.

posts = self._RunAsync (Post.RangeQuery, client, 'e0', None, 2, None)