Oh, I see! So the git clone command in the app.yml file adds more behavior than what was mentioned in that file! Now it makes sense. 
Now, when I activate the AI plugin and add a new LLM in the plugin, apart from being able to select AWS Bedrock, why doesn’t the AWS bedrock access key id and AWS bedrock region input fields appear when I select Bedrock as a provider, unlike what is mentioned in this document: Configuring Amazon Bedrock services
I’m using the Discourse version 3.4.5, and the AI plugin version is 0.0.1
and bdef136.