Geralmente fazemos assim.

interface Props<T> {
  items: T;
}

function select<T>({ items }: Props<T>) {
  return {
    // ...
  };
}

const select2 = <T>({items}: Props<T>) => {
    return {
        // ...
      };
}


select<[{id: number}]>({items: [{id: 1}]})
select2<[{id: string}]>({items: [{id: '1'}]})


Sendo o select -> function select<[{ id: number; }]>({ items }: Props<[{ id: number; }]>): {}
Sendo o select2 -> const select2: <[{ id: string; }]>({ items }: Props<[{ id: string; }]>) => {}