Is there a way to automatically generate type-graphql type classes from existing TypeScript? (Or OpenAPI specs)

[dwjohnston]

I'm creating creating graphql resolvers using type-graphql for some upstream REST APIs that all have OpenAPI specs.

I can generate plain ol' TypeScript types with various tools. But then I find myself in the position of manually creating type-graphql style class typings anyway.

Is there a tool that read either TypeScript typings or the OpenAPI spec and generate the type-graphql classes I need?