So this is somewhere in the middle between bug and improvement.
I have kind of specific situation, but I think lot of users can try to do the same.

So I'm using Lerna for monorepo ReactJS project and plop is configured to 1st fetch list od directories inside ./packages folder as there can be multiple projects inside there and some developer can create new project so I wanted to make it dynamic as possible. I'm achieving using fs from node js and something like:

{
 type: 'list',
 name: 'package',
 message: 'Choose project from ./packages dir',
 choices: () => fs.readdirSync('./packages/')
  .filter(item => !/.ts|.tsx|.ejs|.js|.jsx/.test(item))
  .map(file => ({ name: file, value: file })),
}

But then if I try to use plopthro CLI like this: plop styleguide i get:

[ERROR] The "package" prompt did not recognize "styleguide" as a valid list value (ERROR: Cannot read property 'call' of undefined)

Standard option with providing array of objects works, but then i lose dynamic capabilities and have to force developers to change generator every time they make new project (it's not offeten but it could be)