text: var module = new binaryen.Module();
  
  module.addFunction("main", binaryen.i32, binaryen.i32, [], module.local.get(0, binaryen.i32));
  
  module.addFunctionExport("main", "main");
  
  assert(module.validate()); // should validate before calling emitAsmjs
  
  console.log(module.emitAsmjs());
  