@assistant-ui/react/src/utils/RequireAtLeastOne.ts

Open-source TypeScript/React library for building production-grade AI chat experiences

export type RequireAtLeastOne<T, Keys extends keyof T = keyof T> = Pick<
  T,
  Exclude<keyof T, Keys>
> &
  {
    [K in Keys]-?: Required<Pick<T, K>> & Partial<Pick<T, Exclude<Keys, K>>>;
  }[Keys];