human
Solve the following python programming problem given the following code:
def assert_class_versions(self, expected, received) : 
    def format_dict(d) : 
        return ''.join (('
    {} = {}'.format (key, val) for (key, val) in sorted (d.items ()))) 
self.assertEqual (expected, expected, 'Compiled class versions differed.
  expected: {}
  received: {}'.format (format_dict (expected), format_dict (received))) 

    
    

    Fix the buggy line: self.assertEqual (expected, expected, 'Compiled class versions differed.
  expected: {}
  received: {}'.format (format_dict (expected), format_dict (received)))
assistant
#Here is Python program to fix the buggy line: self.

self.assertEqual (expected, received, 'Compiled class versions differed.
  expected: {}
  received: {}'.format (format_dict (expected), format_dict (received)))