Function write_object 

pub fn write_object<T, U, E>(
    value: &T,
    size_key: Option<&str>,
    stream: &mut BitStreamWriter<'_>,
    config: &mut SerializerConfig<U>,
) -> Result<(), E>
where
    T: BinarySerializer<U, E>,
    U: Clone,
    E: From<SerializationError>,