Utility functions

The following utility functions are available on the Txt global object:

• Get Value — retrieve a visitor data value by key
• Set Value — store a custom key/value pair on the visitor
• Logout — clear all Unless storage and cookies
• Send a Message — programmatically send a prompt to the AI
• Get Conversation Transcript — retrieve the current conversation as a string
• Get Last QA Pair — retrieve the most recent question and answer