#return(\%lastKnownSigValH, \%scopesHierH, \%scopesH, \%timeRangeH, 
 #       \%timeIntervalBasedActivityH, $vcdFile, $timeUnits);
 
  $self->{lastKnownSigValH} = \%lastKnownSigValH;
  $self->{scopesHierH} = \%scopesHierH; 
  $self->{scopesH}     = \%scopesH;
  $self->{timeRangeH}  = \%timeRangeH;
  $self->{timeIntervalBasedActivityH} = \%timeIntervalBasedActivityH; 
  $self->{vcdFile}   = $vcdFile; 
  $self->{timeUnits} = $timeUnits;