const moduleCache = new Map();

async function loadModule(name) {
  if (moduleCache.has(name)) {
    return moduleCache.get(name);
  }
  
  const module = await Promise.resolve({
    default: () => `Module ${name} loaded`,
    version: '1.0.0'
  });
  
  moduleCache.set(name, module);
  return module;
}

const results = [];
loadModule('auth').then(m => results.push(m.default()));
loadModule('auth').then(m => results.push(m.version));
loadModule('utils').then(m => results.push(m.default()));

setTimeout(() => console.log(results.join(', ')), 0);