Unsupported for Avro union

[attilasuranyi]

Is there a way to use schemas with union types like the one below?
With these union fields we are getting errors like "msg:"Id: avro: int is unsupported for Avro union"", and the only workaround I've found so far is defining our struct fields as pointer types, but that is error prone due to nil pointer dereference.

t.Run("Schema union type field", func(t *testing.T) {
    type TestRecord struct {
	    Id int `avro:"id"`
    }
    
    schema, err := avro.Parse(`{
	    "type":"record",
	    "name":"TestRecord",
	    "namespace":"namespace",
	    "fields":[
		    {"name":"id","type":["null","int"]}
	    ]}`)
    assert.Nil(t, err)
    
    in := TestRecord{Id: 5}
    recordBinary, err := avro.Marshal(schema, in)
    assert.Nil(t, err)
    
    out := TestRecord{}
    err = avro.Unmarshal(schema, recordBinary, &out)
    assert.Nil(t, err)
})

[nrwiersma]

https://github.com/hamba/avro?tab=readme-ov-file#unions