code: def _summarize_call(parts):
      
      svtype = [x.split("=")[1] for x in parts[7].split(";") if x.startswith("SVTYPE=")]
      svtype = svtype[0] if svtype else ""
      start, end = _get_start_end(parts)
      return {"svtype": svtype, "size": int(end) - int(start)}
docs: Provide summary metrics on size and svtype for a SV call.