code: def _handle_multiple_svcallers(data, stage):
      
      svs = get_svcallers(data)
      # special cases -- prioritization
      if stage == "ensemble" and dd.get_svprioritize(data):
          svs.append("prioritize")
      out = []
      for svcaller in svs:
          if svcaller in _get_callers([data], stage):
              base = copy.deepcopy(data)
              # clean SV callers present in multiple rounds and not this caller
              final_svs = []
              for sv in data.get("sv", []):
                  if (stage == "ensemble" or sv["variantcaller"] == svcaller or sv["variantcaller"] not in svs
                        or svcaller not in _get_callers([data], stage, special_cases=True)):
                      final_svs.append(sv)
              base["sv"] = final_svs
              base["config"]["algorithm"]["svcaller"] = svcaller
              base["config"]["algorithm"]["svcaller_orig"] = svs
              out.append(base)
      return out
docs: Retrieve configured structural variation caller, handling multiple.