How to send INT signal when Guard stops?

[georgeu2000]

I am using Guard Process, and it does not seem to send the INT signal when I exit Guard with e.

So, I would like to add a stop hook to send the signal "manually". Looked at the Wiki but did not see how to send a signal.

It does however, use the stop_end hook.

guard 'process', name:'Server', command:'ruby server.rb' do
  watch %r{spec/.*}
  watch %r{src/.*}

  callback( :stop_end ){ How to send INT to process? }
end