For the 'GitLab access token': You should open your Gitlab and create your Access Tokens :

For the Project ID: You should open the repository then F12 or right-click the web page and check it to find Project_ID.
For the Chatgpt Api, you can find it through https://platform.openai.com/api-keys. Notice: There is a fee for using this, which is incurred when using ChatGpt, and the fee is also specified by ChatGpt.

