public static interface HttpClient.RedirectSendHandler extends BiFunction<HttpClientRequest,NettyOutbound,Publisher<Void>>
HttpClient.RequestSender.send(BiFunction).
When the BiFunction passed into send is an implementation of this
interface, it indicates it differentiates between original and redirect requests,
e.g. as a result of enabling HttpClient.followRedirect(boolean), and is capable of
applying separate logic for each individually. Redirect scenarios may be detected
by checking HttpClientInfos.redirectedFrom().
When the BiFunction passed in is not an implementation of this interface,
it indicates it does not differentiate between original and redirect requests, and
applies the same initialization logic.
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