const maybeFooBarBaz = forComp(
  () => this.getAsOption('foo'),
  (foo) => this.getAsOption('bar'),
  (foo, bar) => this.getAsOption('baz')
).yield((foo, bar, baz) => `${foo} ${bar} ${baz}`);


console.log(maybeFooBarBax.valueOrElse('On of the options was none.'));