Realm - List of possible error codes

Question

In Realm Object Server sample codes, following can be found:

throw new deps.problem.HttpProblem.Unauthorized({
            detail: `Something bad happened: ${err.toString()}`,
          });

Here, like deps.problem.HttpProblem.Unauthorized there may be other defined errors that can be used. However, I could no where find such list or details in any docs or references.

Can anyone help me in here to get such list or errors?