* inputs, regardless of how the elements are divided.
   */
  @SafeVarargs
  @CanIgnoreReturnValue
  @SuppressWarnings("nullness") // TODO(cpovirk): Remove after we fix whatever the bug is.
  public final CollectorTester<T, A, R> expectCollects(R expectedResult, T... inputs) {
    List<T> list = Arrays.asList(inputs);
    doExpectCollects(expectedResult, list);

     * that seems unlikely enough to be worth complicating the test over, especially if there's any
     * chance that a permissive test could mask a bug.
     */
    expectUnchanged();
    // Be extra thorough in case internal state was corrupted by the expected null.
    assertEquals(new ArrayList<>(), new ArrayList<>(multimap().get(k3())));

          if (nanoTime >= waitUntil) return@withLock null
          val editCountBefore = editCount
          yieldUntil { nanoTime >= waitUntil || editCount > editCountBefore }
        }
        // TODO report compiler bug
        TODO("Can't get here")
      }
    }

    override fun put(element: T) {
      taskRunner.withLock {
        delegate.put(element)
        editCount++
      }
    }

// Some Android 5.0.x Samsung devices have bugs in JDK reflection APIs that cause
// getDeclaredField to throw a NoSuchFieldException when the field is definitely there.
// Since this class only needs CAS on one field, we can avoid this bug by extending AtomicReference
// instead of using an AtomicReferenceFieldUpdater. This reference stores Thread instances
// and DONE/INTERRUPTED - they have a common ancestor of Runnable.

* [fluentd-gcp addon] Fixed bug with reporting metrics in event-exporter ([#60126](https://github.com/kubernetes/kubernetes/pull/60126), [@serathius](https://github.com/serathius))

          // I regard highly unlikely that both the little endianness tests above and this one
          // passes, and there is still a little endianness bug lurking around.
        }
      }

      Control control = new Control();
      Hasher controlSink = control.newHasher(1024);

      Iterable<Hasher> sinksAndControl =

func (n *NetworkError) Unwrap() error {
	return n.Err
}

// Client - http based RPC client.
type Client struct {
	connected int32 // ref: https://golang.org/pkg/sync/atomic/#pkg-note-BUG
	_         int32 // For 64 bits alignment
	lastConn  int64

	// HealthCheckFn is the function set to test for health.
	// If not set the client will not keep track of health.

    - [Removed metrics](#removed-metrics)
    - [Deprecated metrics](#deprecated-metrics)
  - [Notable Features](#notable-features)
  - [API Changes](#api-changes)
  - [Detailed Bug Fixes And Changes](#detailed-bug-fixes-and-changes)
    - [API Machinery](#api-machinery)
    - [Apps](#apps)
    - [Auth](#auth)
    - [AWS](#aws)
    - [Azure](#azure)
    - [CLI](#cli)
    - [Cloud Provider](#cloud-provider)

    }

    @Override
    public E intern(E sample) {
      while (true) {
        // trying to read the canonical...
        @SuppressWarnings("rawtypes") // using raw types to avoid a bug in our nullness checker :(
        InternalEntry entry = map.getEntry(sample);
        if (entry != null) {
          Object canonical = entry.getKey();

    hashed_password = hashed_password,
)
```

/// warning | 警告

辅助的附加函数只是为了演示可能的数据流，但它们显然不能提供任何真正的安全机制。

///

## 减少重复

**FastAPI** 的核心思想就是减少代码重复。

代码重复会导致 bug、安全问题、代码失步等问题（更新了某个位置的代码，但没有同步更新其它位置的代码）。

上面的这些模型共享了大量数据，拥有重复的属性名和类型。

FastAPI 可以做得更好。

声明 `UserBase` 模型作为其它模型的基类。然后，用该类衍生出继承其属性（类型声明、验证等）的子类。

所有数据转换、校验、文档等功能仍将正常运行。