human
Solve the following python programming problem given the following code:
def test_force_list_callable(self) : 
    xml = '
        <config>
            <servers>
              <server>
                <name>server1</name>
                <os>os1</os>
              </server>
            </servers>
            <skip>
                <server></server>
            </skip>
        </config>
        ' 
    def force_list(path, key, value) : 
        'Only return True for servers/server, but not for skip/server.' 
        if (key != 'server') : 
            return False 
return (path and (path [(- 1)] [0] == 'servers')) 
expectedResult = { 
        'config' : { 
            'servers' : { 
                'server' : [{ 
                    'name' : 'server1', 
                    'os' : 'os1', 
}], 
}, 
            'skip' : { 
                'server' : None, 
}, 
}, 
} 
    self.assertEqual (parse (force_list, force_list = force_list, dict_constructor = dict), expectedResult) 

    
    

    Fix the buggy line: self.assertEqual (parse (force_list, force_list = force_list, dict_constructor = dict), expectedResult)
assistant
#Here is Python code to fix the buggy line: self.

self.assertEqual (parse (xml, force_list = force_list, dict_constructor = dict), expectedResult)