human
Solve the following python programming problem given the following code:
@ patch.object (Collector, 'flush') 
def test_should_create_dimension(self, publish_mock) : 
    self.collector.list_request = list_request 
    def se(url) : 
        return self.getFixture ('metrics.json') 
patch_urlopen = patch ('urllib2.urlopen', Mock (side_effect = se)) 
    with patch_urlopen : 
        self.collector.collect () 
self.assertEquals (len (self.collector.payload), 3827) 
    metrics = find_metric (self.collector.payload, 'org.apache.cassandra.metrics.ColumnFamily.LiveSSTableCount') 
    self.assertNotEqual (len (metrics), 0) 
    metric = find_by_dimension (metrics, 'type', 'compaction_history') 
    self.assertEquals (metrics ['type'], 'GAUGE') 
    pending_task = find_metric (self.collector.payload, 'org.apache.cassandra.metrics.CommitLog4.2.PendingTasks') 
    self.assertNotEqual (len (pending_task), 0) 

    
    

    Fix the buggy line: self.assertEquals (metrics ['type'], 'GAUGE')
assistant
#Here is Python program to fix the buggy line: self.

self.assertEquals (metric ['type'], 'GAUGE')