function prop<T, K extends keyof T>(name: K, o: T): T[K] {
  return o[name];
}

function maybeProp<T, K extends keyof T>(name: K, o: T): Option<T[K]> {
  return fromNullable(o[name]);
}

const safeProp = R.curry(maybeProp);
const pipeK = R.pipeK;

function distribute<T>(os: Option<T[]>): Array<Option<T>> {
  return R.sequence(R.of, os);
}