Hi! I'm seeing response_class and error fields in my logs, and I wanted to understand where these are coming from?

Sample values I'm seeing for these fields are:

• response_class — 5xx, 4xx, 3xx, 2xx, ....
• error — true, ....

I'm looking into this because I noticed that these two fields can produce conflicting values. For instance, when response_class is showing 2xx (for success status code), I'm seeing error as true which is contradictory. Can you help me understand how these fields are determined / populated?