@Override
    public TypeSerializer<T> createSerializer(SerializerConfig config) {
        return new AvroSerializer<>(getTypeClass());
    }
@Test
    void testAvroByDefault() {
        final TypeSerializer<User> serializer =
                new AvroTypeInfo<>(User.class).createSerializer(new SerializerConfigImpl());
        assertThat(serializer).isInstanceOf(AvroSerializer.class);
    }