Sets the values for 'result' and 'value' properties.

import Batch = require("nativescript-batch");

var b = Batch.newBatch(function(ctx) {
    ctx.setResultAndValue("TM");
}).then(function(ctx) {
    console.log("Value: " + ctx.value);  // "TM"
});

// "TM"
var r = b.start();