Function pick

pick<T, K extends string | number | symbol>(
    x: T,
    ks: K[],
): { [P in string | number | symbol]: T[P] }

pick<T, K extends string | number | symbol>(
    x: T,
    ks: readonly K[],
): {
    [P in string | number | symbol as P extends keyof T ? P<P> : never]: T[P & keyof T]
}