import { type xor } from "https://deno.land/x/arktype@v1.0.10-alpha/utils/generics.ts";
Either: A, with all properties of B undefined OR B, with all properties of A undefined
import { type xor } from "https://deno.land/x/arktype@v1.0.10-alpha/utils/generics.ts";
Either: A, with all properties of B undefined OR B, with all properties of A undefined