code: def _clean_flat_variantcaller(data):
      
      vc = dd.get_variantcaller(data)
      if isinstance(vc, (list, tuple)) and all([x.count(":") == 1 for x in vc]):
          out = {}
          for v in vc:
              k, v = v.split(":")
              if k in out:
                  out[k].append(v)
              else:
                  out[k] = [v]
          data = dd.set_variantcaller(data, out)
      return data
docs: Convert flattened dictionary from CWL representation into dictionary.
  
      CWL flattens somatic/germline tags into a set of strings, which we
      reconstitute as a dictionary.