---

For the next terms, use the following translations:

* framework: framework (do not translate to "marco")
* performance: rendimiento
* program (verb): programar
* code (verb): programar
* type hints: anotaciones de tipos
* type annotations: anotaciones de tipos
* autocomplete: autocompletado
* completion (in the context of autocompletion): autocompletado
* feature: funcionalidad
* sponsor: sponsor

pkg syscall (openbsd-386), const SizeofRtMsghdr = 88
pkg syscall (openbsd-386), const TIOCGTSTAMP = 1074295899
pkg syscall (openbsd-386), type Dirent struct, Fileno uint32
pkg syscall (openbsd-386), type FdSet struct, Bits [32]int32
pkg syscall (openbsd-386), type Kevent_t struct, Data int32
pkg syscall (openbsd-386), type Mclpool struct, Grown uint32
pkg syscall (openbsd-386), type RtMetrics struct, Expire uint32

/// info | 信息

想了解更多关于 [Pydantic](https://docs.pydantic.dev/) 的信息，请查看其文档。

///

**FastAPI** 完全建立在 Pydantic 之上。

你会在[教程 - 用户指南](tutorial/index.md)中看到更多的实战示例。

## 带元数据注解的类型提示 { #type-hints-with-metadata-annotations }

Python 还提供了一个特性，可以使用 `Annotated` 在这些类型提示中放入额外的<dfn title="关于数据的数据，此处指关于类型的信息，例如描述。">元数据</dfn>。

你可以从 `typing` 导入 `Annotated`。

// not nil. Values of string type are immutable.
type string string

// int is a signed integer type that is at least 32 bits in size. It is a
// distinct type, however, and not an alias for, say, int32.
type int int

// uint is an unsigned integer type that is at least 32 bits in size. It is a
// distinct type, however, and not an alias for, say, uint32.
type uint uint

	OpResponse

	// OpDisconnect instructs that remote wants to disconnect
	OpDisconnect

	// OpMerged is several operations merged into one.
	OpMerged
)

const (
	// FlagCRCxxh3 indicates that, the lower 32 bits of xxhash3 of the serialized
	// message will be sent after the serialized message as little endian.
	FlagCRCxxh3 Flags = 1 << iota

	// FlagEOF the stream (either direction) is at EOF.
	FlagEOF

Using `gotestjsonbuildtext=1` restores the 1.23 behavior.
This setting will be removed in a future release, Go 1.28 at the earliest.

Go 1.24 changed [`crypto/rsa`](/pkg/crypto/rsa) to require RSA keys to be at
least 1024 bits. This behavior can be controlled with the `rsa1024min` setting.
Using `rsa1024min=0` restores the Go 1.23 behavior.

Go 1.24 introduced a mechanism for enabling platform specific Data Independent

   * its capacity threshold.
   *
   * The Least Recently Used page replacement algorithm was chosen due to its simplicity, high hit
   * rate, and ability to be implemented with O(1) time complexity. The initial LRU implementation
   * operates per-segment rather than globally for increased implementation simplicity. We expect
   * the cache hit rate to be similar to that of a global LRU algorithm.
   */

  @Override
  public HashCode hashBytes(byte[] input, int off, int len) {
    checkPositionIndexes(off, off + len, input.length);
    return HashCode.fromLong(fingerprint(input, off, len));
  }

  @Override
  public int bits() {
    return 64;
  }

  @Override
  public String toString() {
    return "Hashing.fingerprint2011()";
  }

  // End of public functions.

  @VisibleForTesting

- Kube-scheduler implements scheduling hints for the VolumeRestriction plugin.
  Scheduling hints allow the scheduler to retry scheduling Pods that were previously rejected by the VolumeRestriction plugin if a new pvc added, and the pvc belongs to pod. ([#125280](https://github.com/kubernetes/kubernetes/pull/125280), [@HirazawaUi](https://github.com/HirazawaUi)) [SIG Scheduling and Storage]
- Kube-scheduler implements scheduling hints for the VolumeZone plugin.

    rm -f "${SVG_TEST}"
else
    echo -e "rsvg-convert available: ${RED}NO${NC} (skipping SVG tests)"
fi

echo ""
echo "--- Format hint tests ---"

# Test that format hints are properly constructed
# This is a logical test of the script structure
echo -n "Testing: format hint construction... "
if grep -q 'format_hint=""' "${GENERATE_THUMBNAIL}" && \