code: def _varfeatures_worker(task):
      '''
      This wraps varfeatures.
  
      '''
  
      try:
          (lcfile, outdir, timecols, magcols, errcols,
           mindet, lcformat, lcformatdir) = task
          return get_varfeatures(lcfile, outdir,
                                 timecols=timecols,
                                 magcols=magcols,
                                 errcols=errcols,
                                 mindet=mindet,
                                 lcformat=lcformat,
                                 lcformatdir=lcformatdir)
  
      except Exception as e:
          return Nonf _varfeatures_worker(task):
      '''
      This wraps varfeatures.
  
      '''
  
      try:
          (lcfile, outdir, timecols, magcols, errcols,
           mindet, lcformat, lcformatdir) = task
          return get_varfeatures(lcfile, outdir,
                                 timecols=timecols,
                                 magcols=magcols,
                                 errcols=errcols,
                                 mindet=mindet,
                                 lcformat=lcformat,
                                 lcformatdir=lcformatdir)
  
      except Exception as e:
          return None
docs: This wraps varfeatures.