def print_lines_for_log(self):
     _lines = super(ITransientMultigridProblem, self).print_lines_for_log()
     _lines.update(MultigridProblemMixin.print_lines_for_log(self))
     return _lines
 def __init__(self, *args, **kwargs):
     super(ITransientMultigridProblem, self).__init__(*args, **kwargs)
     MultigridProblemMixin.__init__(self, *args, **kwargs)