text: from noise.processing.handshakepatterns.handshakepattern import HandshakePattern
  
  
  class KK1HandshakePattern(HandshakePattern):
      def __init__(self, ):
          super(KK1HandshakePattern, self).__init__(
              'KK1',
              initiator_pre_messages=('s',),
              responder_pre_message_pattern=('s',),
              message_patterns=(
                  ('e',),
                  ('e', 'ee', 'se', 'es')
              )
          )
  