code: public String run(String scriptName, String argument) throws ResourceException, ScriptException {
          Binding binding = new Binding();
          binding.setVariable("arg", argument);
          Object result = run(scriptName, binding);
          return result == null ? "" : result.toString();
      }
docs: Run a script identified by name with a single argument.
  
  @param scriptName name of the script to run
  @param argument   a single argument passed as a variable named <code>arg</code> in the binding
  @return a <code>toString()</code> representation of the result of the execution of the script
  @throws ResourceException if there is a problem accessing the script
  @throws ScriptException   if there is a problem parsing the script