// Buffers sent on out can not be referenced once sent.
	StreamHandlerFn func(ctx context.Context, payload []byte, in <-chan []byte, out chan<- []byte) *RemoteErr

	// StreamHandler handles fully bidirectional streams,
	// There is flow control in both directions.
	StreamHandler struct {
		// Handle an incoming request. Initial payload is sent.

You can declare a parameter in a *path operation function* or dependency function with the type `BackgroundTasks`, and then you can use it to schedule the execution of background tasks after the response is sent.

You can import it directly from `fastapi`:

```python
from fastapi import BackgroundTasks
```

// It does not encrypt empty ETags because such ETags indicate
// that the S3 client hasn't sent an ETag = MD5(object) and
// the backend can pick an ETag value.
func (key ObjectKey) SealETag(etag []byte) []byte {
	if len(etag) == 0 { // don't encrypt empty ETag - only if client sent ETag = MD5(object)
		return etag
	}
	var buffer bytes.Buffer
	mac := hmac.New(sha256.New, key[:])

Therefore, using this for large payloads will likely be slower than using a separate connection,
and other connections will be blocked while the large payload is being sent.

## Handlers & Routes

Handlers have a predefined Handler ID. 
In addition, there can be several *static* subroutes used to differentiate between different handlers of the same ID.

// Package-wide variables from generator "generated".
option go_package = "k8s.io/api/admissionregistration/v1";

// MatchCondition represents a condition which must by fulfilled for a request to be sent to a webhook.
message MatchCondition {
  // Name is an identifier for this match condition, used for strategic merging of MatchConditions,

      if (requestBody == null || !requestBody.isDuplex()) {
        exchange.finishRequest()
      }
    } catch (e: IOException) {
      if (e is ConnectionShutdownException) {
        throw e // No request was sent so there's no response to read.
      }
      if (!exchange.hasFailure) {
        throw e // Don't attempt to read the response; we failed to send the request.
      }
      sendRequestException = e
    }

application/access             mdf              # Microsoft Access
#application/excel              xls              # Microsoft Excel
application/vnd.ms-excel       xls              # Microsoft Excel
application/font-tdpfr         pfr              # TrueDoc Portable Font Resource
application/futuresplash       spl              # Macromedia Flash
application/hep                hep              # Hummingbird Host Explorer Profiles

# Module okhttp-sse

font-size: 2.5rem;\n}\n\nh2, .h2 {\n  font-size: 2rem;\n}\n\nh3, .h3 {\n  font-size: 1.75rem;\n}\n\nh4, .h4 {\n  font-size: 1.5rem;\n}\n\nh5, .h5 {\n  font-size: 1.25rem;\n}\n\nh6, .h6 {\n  font-size: 1rem;\n}\n\n.lead {\n  font-size: 1.25rem;\n  font-weight: 300;\n}\n\n.display-1 {\n  font-size: 6rem;\n  font-weight: 300;\n  line-height: 1.2;\n}\n\n.display-2 {\n  font-size: 5.5rem;\n  font-weight: 300;\n  line-height: 1.2;\n}\n\n.display-3 {\n  font-size: 4.5rem;\n  font-weight: 300;\n  line-height: 1...

        os.remove(log)  # pragma: no cover
    response = client.post("/send-notification/******@****.***")
    assert response.status_code == 200, response.text
    assert response.json() == {"message": "Notification sent in the background"}
    with open("./log.txt") as f: