code: def dist_abs(self, src, tar):
          
          return self._lev.dist_abs(
              src, tar, mode='lev', cost=(1, 1, 9999, 9999)
          )
docs: Return the indel distance between two strings.
  
          Parameters
          ----------
          src : str
              Source string for comparison
          tar : str
              Target string for comparison
  
          Returns
          -------
          int
              Indel distance
  
          Examples
          --------
          >>> cmp = Indel()
          >>> cmp.dist_abs('cat', 'hat')
          2
          >>> cmp.dist_abs('Niall', 'Neil')
          3
          >>> cmp.dist_abs('Colin', 'Cuilen')
          5
          >>> cmp.dist_abs('ATCG', 'TAGC')
          4