Function compress_and_enqueue_a_chunk 

pub(crate) fn compress_and_enqueue_a_chunk(
    cx: &mut JSContext,
    global: &GlobalScope,
    cs: &CompressionStream,
    chunk: HandleValue<'_>,
    controller: &TransformStreamDefaultController,
) -> Fallible<()>

https://compression.spec.whatwg.org/#compress-and-enqueue-a-chunk