NetSynthUtils { public static String escapeSpecialCharacters(final String str) { String rtn = null; rtn = str.replace("$", "\\$"); return rtn; }  static String escapeSpecialCharacters(final String str); static String getVerilog(final Netlist netlist); static String getNodeType(final Gate.GateType type); static Netlist getNetSynthNetlist(
      final Netlist netlist, final JSONArray motifs, final String outputDir);  }
@Test public void testEscapeSpecialCharacters() { String str = "$50"; str = NetSynthUtils.escapeSpecialCharacters(str); assert str.equals("\\$50"); }