code: def _ci_to_hgvs_coord(s, e):
      
  
      def _ci_to_hgvs(c):
          return c + 1 if c >= 0 else c
  
      return (None if s is None else _ci_to_hgvs(s), None if e is None else _ci_to_hgvs(e) - 1)
docs: Convert continuous interbase (right-open) coordinates (..,-2,-1,0,1,..) to
      discontinuous HGVS coordinates (..,-2,-1,1,2,..)