Very likely this: http://github.com/unbounce/babel-plugin-transform-flow-to-gen http://github.com/unbounce/babel-plugin-transform-flow-to-ge... https://medium.

Very likely this: http://github.com/unbounce/babel-plugin-transform-flow-to-gen http://github.com/unbounce/babel-plugin-transform-flow-to-ge... https://medium.com/@gabescholz/randomized-testing-in-javascript-without-lifting-a-finger-8d616d7048af https://medium.com/@gabescholz/randomized-testing-in-javascr...