if err := json.Unmarshal(buf.Bytes(), &ei); err == nil && ei.V2Obj != nil {
						verID := uuid.UUID(header.VersionID).String()
						if verID == "00000000-0000-0000-0000-000000000000" {
							// If the version ID is all zeros, use the signature as version ID.
							verID = fmt.Sprintf("null/%08x", header.Signature)
							v0 = verID
						}
						idx := ei.V2Obj.EcIndex

						v = v.Elem()
					} else {
						return nil, true
					}
				}
			}

			fv, zero := v.Interface(), v.IsZero()
			return fv, zero
		}
	}

	if field.Serializer != nil {
		oldValuerOf := field.ValueOf
		field.ValueOf = func(ctx context.Context, v reflect.Value) (interface{}, bool) {
			value, zero := oldValuerOf(ctx, v)

			s, ok := value.(SerializerValuerInterface)
			if !ok {

	c := make(chan ioret[V], 1)
	go func() {
		v, err := work(ctx)
		c <- ioret[V]{val: v, err: err}
	}()

	select {
	case v := <-c:
		return v.val, v.err
	case <-ctx.Done():
		var zero V
		return zero, ctx.Err()
	}
}

// DeadlineWorker implements the deadline/timeout resiliency pattern.
type DeadlineWorker struct {
	timeout time.Duration
}

          // primitives
          .put(Object.class, "")
          .put(Number.class, 0)
          .put(UnsignedInteger.class, UnsignedInteger.ZERO)
          .put(UnsignedLong.class, UnsignedLong.ZERO)
          .put(BigInteger.class, BigInteger.ZERO)
          .put(BigDecimal.class, BigDecimal.ZERO)
          .put(CharSequence.class, "")
          .put(String.class, "")
          .put(Pattern.class, Pattern.compile(""))

          // primitives
          .put(Object.class, "")
          .put(Number.class, 0)
          .put(UnsignedInteger.class, UnsignedInteger.ZERO)
          .put(UnsignedLong.class, UnsignedLong.ZERO)
          .put(BigInteger.class, BigInteger.ZERO)
          .put(BigDecimal.class, BigDecimal.ZERO)
          .put(CharSequence.class, "")
          .put(String.class, "")
          .put(Pattern.class, Pattern.compile(""))

      sink.flush()
    }
  }

  /**
   * Tell the peer to stop creating streams and that we last processed `lastGoodStreamId`, or zero
   * if no streams were processed.
   *
   * @param lastGoodStreamId the last stream ID processed, or zero if no streams were processed.
   * @param errorCode reason for closing the connection.
   * @param debugData only valid for HTTP/2; opaque debug data to send.
   */

}

// Return shuffled partsMetadata depending on fi.Distribution.
// additional validation is attempted and invalid metadata is
// automatically skipped only when fi.ModTime is non-zero
// indicating that this is called during read-phase
func shuffleDisksAndPartsMetadata(disks []StorageAPI, partsMetadata []FileInfo, fi FileInfo) (shuffledDisks []StorageAPI, shuffledPartsMetadata []FileInfo) {

## Construindo uma Imagem Docker para FastAPI

Okay, vamos construir algo agora! 🚀

Eu vou mostrar como construir uma **imagem Docker** para FastAPI **do zero**, baseado na **imagem oficial do Python**.

Isso é o que você quer fazer na **maioria dos casos**, por exemplo:

* Usando **Kubernetes** ou ferramentas similares
* Quando rodando em uma **Raspberry Pi**

		// to explicitly say that the ContentLength is zero is
		// to set the Body to nil. But turns out too much code
		// depends on NewRequest returning a non-nil Body,
		// so we use a well-known ReadCloser variable instead
		// and have the http package also treat that sentinel
		// variable to mean explicitly zero.
		if req.GetBody != nil && req.ContentLength == 0 {
			req.Body = http.NoBody

	}

	if len(labels)/2 != len(validLabels) {
		panic(fmt.Sprintf("not all labels were given values"))
	}

	v, ok := m.values[name]
	if !ok {
		v = make([]metricValue, 0, 1)
	}
	// If valid non zero value set the metrics
	if value > 0 {
		m.values[name] = append(v, metricValue{
			Labels: labelMap,
			Value:  value,
		})
	}
}