human
Solve the following python programming problem given the following code:
def _RetrieveValues(self, values, callback) : 
    'Retrieves and verifies the specified values from Datastore database
    via the tornado web server.
    ' 
    def _VerifyResponse(val, cb, resp) : 
        self.assertEqual (resp.body, repr (val)) 
        cb () 
with util.Barrier (callback) as b : 
        for val in values : 
            self.http_client.fetch (httpclient.HTTPRequest (self.get_url (('/datastore?k=k%d' % val)), method = 'GET'), callback = partial (callback, val, b.Callback ())) 

    
    

    Fix the buggy line: self.http_client.fetch (httpclient.HTTPRequest (self.get_url (('/datastore?k=k%d' % val)), method = 'GET'), callback = partial (callback, val, b.Callback ()))
assistant
#Here is Python program to fix the buggy line: self.

self.http_client.fetch (httpclient.HTTPRequest (self.get_url (('/datastore?k=k%d' % val)), method = 'GET'), callback = partial (def _VerifyResponse(, val, b.Callback ()))