That's not a union. Both `{}` and `{ contentA: a, contentB: b }` inhabit that ty...

		matt_kantor on May 4, 2022 \| parent \| context \| favorite \| on: You Are Doing JSON APIs Wrong (“foo”:{}, not “type... That's not a union. Both `{}` and `{ contentA: a, contentB: b }` inhabit that type, so it doesn't represent "a value of type `Message` is either a value of `ContentAStructure` or a value of `ContentBStructure`".