import com.google.common.util.concurrent.AbstractFutureBenchmarks.Impl;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.Executor;
import org.jspecify.annotations.NullUnmarked;

/** Measures the size of AbstractFuture implementations. */
@NullUnmarked
public class AbstractFutureFootprintBenchmark {

  enum State {
    NOT_DONE,
    FINISHED,
    CANCELLED,
    FAILED
  }

  @Throws(IOException::class)
  override fun writeTo(sink: BufferedSink) {
    writeOrCountBytes(sink, false)
  }

  /**
   * Either writes this request to [sink] or measures its content length. We have one method
   * do double-duty to make sure the counting and content are consistent, particularly when it comes
   * to awkward operations like measuring the encoded length of header strings, or the

    }

    /**
     * Creates a permissive filter that allows all classes to be deserialized.
     * <p>
     * WARNING: Use this only when you completely trust the data source and have
     * other security measures in place. Unrestricted deserialization can lead to
     * remote code execution vulnerabilities.
     * </p>
     *
     * @return an ObjectInputFilter that allows all classes
     */

import com.google.j2objc.annotations.J2ObjCIncompatible;
import java.time.Duration;
import java.util.concurrent.TimeUnit;

/**
 * An object that accurately measures <i>elapsed time</i>: the measured duration between two
 * successive readings of "now" in the same process.
 *
 * <p>In contrast, <i>wall time</i> is a reading of "now" as given by a method like

# Features { #features }

## FastAPI features { #fastapi-features }

**FastAPI** gives you the following:

### Based on open standards { #based-on-open-standards }

import org.apache.maven.api.annotations.Nullable;

/**
 * Centralized class for Maven Core feature information.
 * Features configured are supposed to be final in a given maven session.
 *
 * @since 4.0.0
 */
public final class Features {

    private Features() {}

    /**
     * Check if the personality is "maven3".
     */

///

### 编辑器支持

整个框架都被设计得易于使用且直观，所有的决定都在开发之前就在多个编辑器上进行了测试，来确保最佳的开发体验。

在最近的 Python 开发者调查中，我们能看到 <a href="https://www.jetbrains.com/research/python-developers-survey-2017/#tools-and-features" class="external-link" target="_blank"> 被使用最多的功能是"自动补全"</a>。

整个 **FastAPI** 框架就是基于这一点的。任何地方都可以进行自动补全。

你几乎不需要经常回来看文档。

在这里，你的编辑器可能会这样帮助你：

///

### 多種編輯器支援

整個框架的設計是為了讓使用變得簡單且直觀，在開始開發之前，所有決策都在多個編輯器上進行了測試，以確保提供最佳的開發體驗。

在最近的 Python 開發者調查中，我們能看到<a href="https://www.jetbrains.com/research/python-developers-survey-2017/#tools-and-features" class="external-link" target="_blank"> 被使用最多的功能是 autocompletion</a>，此功能可以預測將要輸入文字，並自動補齊。

整個 **FastAPI** 框架就是基於這一點，任何地方都可以進行自動補齊。

你幾乎不需要經常來回看文件。

在這裡，你的編輯器可能會這樣幫助你：

  - type: textarea
    id: orthogonality
    attributes:
      label: "Orthogonality: How does this change interact or overlap with existing features?"
      description: "Is the goal of this change a performance improvement? If so, what quantifiable improvement should we expect? How would we measure it?"
    validations:
      required: false

  - type: textarea
    id: learning-curve
    attributes:

import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ITERATOR_REMOVE;
import static com.google.common.collect.testing.features.CollectionSize.ONE;
import static com.google.common.collect.testing.features.CollectionSize.SEVERAL;
import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS;
import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEY_QUERIES;