title: How to lock the rows using sequelize on the another transaction
body: <p>I am using sequelize to manage my database, but many users are using the table concurrently so I should lock the rows which the thread is using. I investigated the docs and find out the lock option, ( lock: true). But is it possible to lock the rows on another transaction? because we are using lambda, so some users are running the function concurrently, I am just wondering if the lock option can lock the rows even on another transaction.</p>
  <p>Just let me know if you have any thoughts on this. Thanks</p>