This script, 'surveys.js', is deployed on websites to enable the collection of user feedback through interactive surveys. It typically handles the rendering of survey forms directly within the user's browser, captures their responses, and transmits this data to the Langfuse backend for processing and analysis. The script operates client-side, dynamically interacting with the Document Object Model (DOM) to display survey prompts, collect user input, and manage the overall survey lifecycle. This includes controlling when and where surveys are presented, and preventing repeated displays to users who have already completed or dismissed a survey. It is particularly valuable for website owners and developers seeking to gather direct insights from their users regarding their experience with the application, especially in the context of features powered by large language models (LLMs). Key functions include displaying survey widgets, validating user input, and securely transmitting collected data. It may also track user interactions with the survey itself, such as impressions, clicks, and completion rates.