isRetryableError() now accepts error code and error message input types. Input of type error messages iterate through hard-coded list of retryable errors maintained on js side to figure out if the error is an retryable error, whereas for error code(/ command response) input type, it iterates through list of error codes that’s tagged as retryable via error_codes.yml. And, those 2 lists are completely different.

Example conflicting error codes: "Interrupted", "MaxTimeMSExpired", "BackupCursorOpenConflictWithCheckpoint", "ConnectionPoolExpired"