code: def encode(self, envelope, session, **kwargs):
  		
  		return WMessengerBytesEnvelope(b64encode(envelope.message()), meta=envelope)
docs: :meth:`.WMessengerOnionCoderLayerProto.encode` method implementation.
  
  		:param envelope: original envelope
  		:param session: original session
  		:param kwargs: additional arguments
  
  		:return: WMessengerBytesEnvelope