Typescript member property reflection

index.ts

class Foo {

  baz: number;

}

export interface StaticClass<InstanceType = any> {
  new (...args: any[]): InstanceType;
}

type Instance<T> = T extends StaticClass<infer U> ? U : never;

function describe<T extends StaticClass>(staticClass: T): {[P in keyof Instance<T>]: P} {
  // can't implement this as classes don't have members at runtime! Need to decorate each property to be able to reflect them.
  return {} as any;
}

const description = describe(Foo);


const a = description.baz;