code: public JcNumber enclose() {
  		JcNumber ret = new JcNumber(null, this,
  				new FunctionInstance(FUNCTION.Common.ENCLOSE, 1));
  		QueryRecorder.recordInvocationConditional(this, "enclose", ret);
  		return ret;
  	}
docs: <div color='red' style="font-size:24px;color:red"><b><i><u>JCYPHER</u></i></b></div>
  <div color='red' style="font-size:18px;color:red"><i>enclose an expression with brackets</i></div>
  <div color='red' style="font-size:18px;color:red"><i>e.g. <b>a.numberProperty("amount").div(b.numberProperty("amount"))<br/>.enclose().mult(2)</b></i></div>
  <div color='red' style="font-size:18px;color:red"><i>maps to an expression <b>(a.amount / b.amount) * 2</b></i></div>
  <br/>