json.forEach(function(element) {
  console.log(element.name);
  s = s + "*** " + element.name + " ***\ntype:" + element.type + "\npayable:" + element.payable + "\ninputs:\n";
  element.inputs.forEach(function(input) {
    s = s + "\t" + input.name + " | " + input.type + "\n";
  });
  s = s + "outputs:\n";
  if (element.outputs) {
    element.outputs.forEach(function(output) { s = s + "\t" + output.name + " | " + output.type + "\n"; });
  }
});