code: def patched_normalizeargs(sequence, output = None):
      
      if output is None:
          output = []
  
      if Broken in getattr(sequence, '__bases__', ()):
          return [sequence]
  
      cls = sequence.__class__
      if InterfaceClass in cls.__mro__ or zope.interface.declarations.Implements in cls.__mro__:
          output.append(sequence)
      else:
          for v in sequence:
              patched_normalizeargs(v, output)
  
      return output
docs: Normalize declaration arguments
  
      Normalization arguments might contain Declarions, tuples, or single
      interfaces.
  
      Anything but individial interfaces or implements specs will be expanded.