Hi, I am new to Avro. When I have an Arvo schema of the form,
``` record Abcd { union { null, bytes } efgh = null; } ``` What would be the corresponding Rust struct? I tried ``` #[derive(Debug, Deserialize, PartialEq)] struct Abcd { efgh: Option<Vec<u8>>, } ``` But for some reason, `apache_avro::from_value` is giving an `Err(DeserializeValue("not an array"))` error. Best, Rajiv