I know the differences between untagged and tagged unions, I'm trying to provide a minimal example without distracting details but sure we can talk about tagged

I know the differences between untagged and tagged unions, I'm trying to provide a minimal example without distracting details but sure we can talk about tagged unions. Here is a list of tagged unions, so I once again point out that sum types are "supported" in JSON/ions just as much as any other data type: [ {tag: "a", foo: 1}, {tag: "b", bar: "hi", baz: 2}, {tag: "a", foo: 3}, {tag: "a", foo: 4}, {tag: "a", foo: 5}, {tag: "b", bar: "yo", baz: 6} ]