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  input BackendDAE.DAELow outDAE;
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    input BackendDAE.DAELow outDAE;
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  partial function BackendDAEOutputInterface
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  end BackendDAEOutputInterface;
protected
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algorithm
  /* get the BackendDAE */
  dae = BackendDAECreate(inDAE);
  /* Optimize, do Index Reduction, Optimice, ... */
  while not fixpoint(dae)
    for f in funcs
       dae = f(dae);
    end for;
  end while;
 /* generate the Output */
  output(dae);
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