import { collapsibleListUnion } from "https://deno.land/x/arktype@v1.0.10-alpha/nodes/rules/collapsibleSet.ts";
type
<t>(l: CollapsibleList<t>, r: CollapsibleList<t>) => CollapsibleList<t> | Equal
x/arktype/nodes/rules/collapsibleSet.ts>collapsibleListUnion
import { collapsibleListUnion } from "https://deno.land/x/arktype@v1.0.10-alpha/nodes/rules/collapsibleSet.ts";