title: Sequelize.js - Delete array of instances after 'findAll'
body: <p>In Sequelize.js I have query to find all items under some condition. After I got array of model instances I want to delete those instances:</p>
  
  <pre><code>let toBeDeleted = await Request.findAll({
    where: {
      // Some where statements...
    }
  });
  
  const deleted = await toBeDeleted.destroyAll(); // &lt;= Need something like this
  
  // Some actions with array `toBeDeleted` (For example, Delete file associated with each row)
  for (let i in toBeDeleted)
              await fs.removeSync(path.join(global.config.paths.screenshots, toBeDeleted[i].image));
  </code></pre>
  
  <p>I need to delete what I found first and then delete associated files with row.</p>