is it possible generate flow type definition file separately or have a cli command?

[budarin]

Hi!
I am not a user of GrapgQL but I use flow type with React.js, flow type & Postgresql.
So type definition of DB entities is a key of writing working code.
I've not found any other library for getting flow types from PG schema
It could be helpful for other developers too to have an ability to get only typedef file of a db schema

Thanks

[gajus]

It is a simply change. PR welcome.