public final FastContentWriter connectFastWriter(ResponseHandler responseHandler) {
        return new FastContentWriter(connect(responseHandler));
    }
<p>Convenience method for constructing a {@link FastContentWriter} over the {@link ContentChannel} returned by
calling {@link #connect(ResponseHandler)}.</p>

@param responseHandler The ResponseHandler to connect to.
@return The FastContentWriter for the connected Response.
jdisc_core/src/main/java/com/yahoo/jdisc/handler/ResponseDispatch.java