+pool
+ .execute({ text: 'hello' }, 'fn0')
+ .then(res => console.info(res))
+ .catch(err => console.error(err))
+pool
+ .execute({ text: 'multiple functions' }, 'fn1')
+ .then(res => console.info(res))
+ .catch(err => console.error(err))
+
+setTimeout(pool.destroy(), 3000)