human
Solve the following python programming problem given the following code:
@ override_settings (MIGRATION_MODULES = { 
    'migrations' : 'migrations.test_migrations_squashed_erroneous', 
}) 
def test_loading_squashed_erroneous(self) : 
    'Tests loading a complex but erroneous set of squashed migrations' 
    loader = MigrationLoader (connection) 
    recorder = MigrationRecorder (connection) 
    self.addCleanup (recorder.flush) 
    def num_nodes() : 
        plan = set (loader.graph.forwards_plan (('migrations', '7_auto'))) 
        return len ((plan - loader.applied_migrations)) 
loader.build_graph () 
    self.assertEqual (num_nodes (), 5) 
    recorder.record_applied ('migrations', '1_auto') 
    loader.build_graph () 
    self.assertEqual (num_nodes (), 4) 
    recorder.record_applied ('migrations', '2_auto') 
    loader.build_graph () 
    self.assertEqual (num_nodes (), 3) 
    msg = "Migration migrations.6_auto depends on nonexistent node ('migrations', '5_auto'). Django tried to replace migration migrations.5_auto with any of [migrations.3_squashed_5] but wasn't able to because some of the replaced migrations are already applied." 
    recorder.record_applied ('migrations', '3_auto') 
    with self.assertRaisesMessage (NodeNotFoundError, recorder) : 
        loader.build_graph () 
recorder.record_applied ('migrations', '4_auto') 
    with self.assertRaisesMessage (NodeNotFoundError, msg) : 
        loader.build_graph () 
recorder.record_applied ('migrations', '5_auto') 
    loader.build_graph () 
    self.assertEqual (num_nodes (), 2) 
    recorder.record_applied ('migrations', '6_auto') 
    loader.build_graph () 
    self.assertEqual (num_nodes (), 1) 
    recorder.record_applied ('migrations', '7_auto') 
    loader.build_graph () 
    self.assertEqual (num_nodes (), 0) 

    
    

    Fix the buggy line: with self.assertRaisesMessage (NodeNotFoundError, recorder) :
assistant
#Here is Python program to fix the buggy line: with self.

with self.assertRaisesMessage (NodeNotFoundError, msg) :