@Override
    public Result put(DocumentPut documentPut, DocumentOperationParameters parameters) {
        PutDocumentMessage msg = new PutDocumentMessage(documentPut);
        return send(msg, parameters);
    }
Creates a new async session running on message bus logic with a specified reply handler.

@param asyncParams common asyncsession parameters, not used
@param bus         the message bus on which to run
@param mbusParams  parameters concerning message bus configuration
@param handler     the external reply handler
documentapi/src/main/java/com/yahoo/documentapi/messagebus/MessageBusAsyncSession.java