code: def ambigcutters(seq):
      
      resos = []
      if any([i in list("RKSYWM") for i in seq]):
          for base in list("RKSYWM"):
              if base in seq:
                  resos.append(seq.replace(base, AMBIGS[base][0]))
                  resos.append(seq.replace(base, AMBIGS[base][1]))
          return resos
      else:
          return [seq, ""]
docs: Returns both resolutions of a cut site that has an ambiguous base in
      it, else the single cut site