human
Solve the following python programming problem given the following code:
def test_single_factor(self) : 
    '
        Test dependency resolution for a single factor.
        ' 
    def check_output(graph) : 
        resolution_order = list (graph.ordered ()) 
        self.assertEqual (len (resolution_order), 4) 
        self.check_dependency_order (resolution_order) 
        self.assertIn (AssetExists (), resolution_order) 
        self.assertIn (SomeDataSet.foo, resolution_order) 
        self.assertIn (SomeDataSet.bar, resolution_order) 
        self.assertIn (SomeFactor (), resolution_order) 
        self.assertEqual (graph.node [SomeDataSet.foo] ['extra_rows'], 4) 
        self.assertEqual (graph.node [SomeDataSet.bar] ['extra_rows'], 4) 
for foobar in gen_equivalent_factors () : 
        check_output (TermGraph (to_dict ([self]))) 

    
    

    Fix the buggy line: check_output (TermGraph (to_dict ([self])))
assistant
#Here is Python code to fix the buggy line: check_output (TermGraph (to_dict ([self])))
.

check_output (TermGraph (to_dict ([foobar])))