shouldRecordResult

Optional predicate evaluated after the block returns without throwing.

When null (default), every non-exceptional return is treated as a success — zero regression. When set, the predicate receives the returned value (Any?). If it returns true, the call is counted as a failure (via the onFailure path) even though the block did not throw. The result is still returned to the caller unchanged.

This predicate is independent of shouldRecordFailure: shouldRecordFailure governs the exception path; shouldRecordResult governs the success-value path.

Example — treat HTTP 503 as a circuit-breaker failure:

shouldRecordResult = { result -> result is ApiResponse && result.code == 503 }