// Filled during heal.
	HealedBuckets []string

	// ID of the current healing operation
	HealID string

	ItemsSkipped uint64
	BytesSkipped uint64

	RetryAttempts uint64

	Finished bool // finished healing, whether with errors or not

	// Add future tracking capabilities
	// Be sure that they are included in toHealingDisk
}

// loadHealingTracker will load the healing tracker from the supplied disk.

     */
    TransformerContext initialize(ModelBuildingRequest request, ModelProblemCollector problems);

    /**
     * The immutable transformerContext, can be used after the buildplan is finished.
     *
     * @return the immutable transformerContext
     */
    TransformerContext build();

The first part of the function, before the `yield`, will be executed **before** the application starts.

And the part after the `yield` will be executed **after** the application has finished.

### Async Context Manager

If you check, the function is decorated with an `@asynccontextmanager`.

That converts the function into something called an "**async context manager**".

        String wallClock = session.getRequest().getDegreeOfConcurrency() > 1 ? " (Wall Clock)" : "";

        logger.info("Total time:  {}{}", formatDuration(time), wallClock);

        logger.info("Finished at: {}", formatTimestamp(finish));
    }

    @Override
    public void projectSkipped(ExecutionEvent event) {
        if (logger.isInfoEnabled()) {
            init();
            logger.info("");

				if !ok {
					// check if we can get one entry at least
					// proceed to heal nonetheless.
					entry, _ = entries.firstFound()
				}
				jt.Take()
				go healEntry(bucket, *entry)
			},
			finished: func(errs []error) {
				if countErrs(errs, nil) != len(errs) {
					retErr = fmt.Errorf("one or more errors reported during listing: %v", errors.Join(errs...))
				}
			},
		})

const (
	healNotStartedStatus healStatusSummary = "not started"
	healRunningStatus                      = "running"
	healStoppedStatus                      = "stopped"
	healFinishedStatus                     = "finished"
)

const (
	// a heal sequence with this many un-consumed heal result
	// items blocks until heal-status consumption resumes or is
	// aborted due to timeout.
	maxUnconsumedHealResultItems = 1000

       *   or it had already failed. (It couldn't have completed *successfully* or even had
       *   setFuture called on it: Neither of those can happen until we've finished processing all
       *   the completed inputs. And we're still processing at least one input, the one that
       *   triggered handleException.)
       *

		}
	}

	if firstTime {
		bootstrapTraceMsg(fmt.Sprintf("globalIAMSys.Load(): (duration: %s)", loadDuration))
		if globalIsDistErasure {
			logger.Info("IAM load(startup) finished. (duration: %s)", loadDuration)
		}
	}

	select {
	case <-sys.configLoaded:
	default:
		close(sys.configLoaded)
	}
	return nil
}

			// - if we found healing tracker 'healing.bin'
			dcinfo.Healing = errors.Is(err, errUnformattedDisk)
			if !dcinfo.Healing {
				if hi := s.Healing(); hi != nil && !hi.Finished {
					dcinfo.Healing = true
				}
			}

			dcinfo.ID = diskID
			return dcinfo, err
		},
	)

	// Success.
	return s, nil
}

// getDiskInfo returns given disk information.

This was designed this way mainly to allow using the same objects "yielded" by dependencies inside of background tasks, because the exit code would be executed after the background tasks were finished.

Nevertheless, as this would mean waiting for the response to travel through the network while unnecessarily holding a resource in a dependency with yield (for example a database connection), this was changed in FastAPI 0.106.0.