Setting lex session/request attributes from Sumerian Lex State Machine actions

sumerian_lex_action_with_session_attributes.js

// This will override an internal method of the sumerian lex actions
// This override is NOT guaranteed to work as we upgrade engine versions, but works with some limited testing with Sumerian 0.18
// In the following version, the code is exactly what we have in the engine, with the addition of the 'sessionAttributes' property
// Any parameter supported by PostContent in the Lex API documentation may be added here, specifically `requestAttributes` and `sessionAttributes`
// See more here: https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/LexRuntime.html#postContent-property
//
// Add this in a script before executing a lex action
// You may execute this whenever updating session attributes OR you may pull from other global data from within this function
// Do not change any of the other parameters, or the Lex actions likely won't work
sumerian.api.aws.lex.LexProcessingAction.prototype._getLexConfig = function(entity, inputStream) {
 
	const { name, alias } = entity.dialogueComponent;
	const contentType = this._getContentType();
 
	return {
	  accept: 'text/plain; charset=utf-8',
	  botName: name,
	  botAlias: alias,
	  contentType,
	  inputStream,
	  userId: this._userId,
	  sessionAttributes: {
		  "attr1" : "value1",
		  "attr2" : "value2"
	  }
  }; 
};

Hi,

Where exactly in a script should this code be executed in order to set the attributes. I am currently trying to set some sessions attributes to send to Lex from a host in Sumeria but I am getting Cannot read property 'LexProcessingAction' of undefined TypeError: Cannot read property 'LexProcessingAction' of undefined. what am I missing?

Thanks,
Kel