Message.connectGotHeaders

gulong connectGotHeaders(T)(T callback,  Flag!"After" after =  No.After) if (isCallable!T
    &&  is(ReturnType!T ==  void)
   && (Parameters!T.length <  1 || (ParameterStorageClassTuple!T[0]  ==  ParameterStorageClass.none &&  is(Parameters!T[0] :  soup.message.Message)))
   &&  Parameters!T.length <  2)

Connect to GotHeaders signal.

Emitted after receiving the Status-Line and response headers.

See also [soup.message.Message.addHeaderHandler] and [soup.message.Message.addStatusCodeHandler], which can be used to connect to a subset of emissions of this signal.

If you cancel or requeue msg while processing this signal, then the current HTTP I/O will be stopped after this signal emission finished, and msg's connection will be closed. (If you need to requeue a message--eg, after handling authentication or redirection--it is usually better to requeue it from a signalMessage::got-body handler rather than a signalMessage::got_headers handler, so that the existing HTTP connection can be reused.)

Parameters

`callback`	signal callback delegate or function to connect `void callback(soup.message.Message message)` `message` the instance the signal is connected to (optional)
`after`	Yes.After to execute callback after default handler, No.After to execute before (default)

Returns

Signal ID