new EqualsTester()
        .addEqualityGroup(function, Functions.forSupplier(supplier))
        .addEqualityGroup(Functions.forSupplier(new CountingSupplier()))
        .addEqualityGroup(Functions.forSupplier(Suppliers.ofInstance(12)))
        .addEqualityGroup(Functions.toStringFunction())
        .testEquals();
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testForSupplierSerializable() {

    assertThrows(IndexOutOfBoundsException.class, () -> iia3.subArray(1, 4));
  }

  /*
   * Whenever an implementation uses `instanceof` on a parameter instance, the test has to know that
   * (so much for "black box") and try instances that both do and don't pass the check. The "don't"
   * half of that is more awkward to arrange...
   */

                    "DH2C", // Durable handle reconnect V2
                    "ExtA", // Extended attributes
                    "SecD", // Security descriptor
                    "AppI" // App instance ID
            };

            for (String name : contextNames) {
                MockCreateContextRequest context = new MockCreateContextRequest(name);
                assertNotNull(context.getName());

接著你可以宣告一個變數為 `Person` 型別：

{* ../../docs_src/python_types/tutorial010_py310.py hl[6] *}

然後，你一樣會得到完整的編輯器支援：

<img src="/img/python-types/image06.png">

請注意，這表示「`one_person` 是類別 `Person` 的『實例（instance）』」。

並不是「`one_person` 就是名為 `Person` 的『類別（class）』」。

## Pydantic 模型 { #pydantic-models }

[Pydantic](https://docs.pydantic.dev/) 是一個用來做資料驗證的 Python 程式庫。

你以帶有屬性的類別來宣告資料的「形狀」。

而每個屬性都有其型別。

/// note | 技術細節

`FastAPI` 是一個直接繼承自 `Starlette` 的類別。

你同樣可以透過 `FastAPI` 來使用 [Starlette](https://www.starlette.dev/) 所有的功能。

///

### 第二步：建立一個 `FastAPI`「實例」 { #step-2-create-a-fastapi-instance }

{* ../../docs_src/first_steps/tutorial001_py310.py hl[3] *}

這裡的 `app` 變數將會是 `FastAPI` 類別的「實例」。

這將是你建立所有 API 的主要互動點。

### 第三步：建立一個「路徑操作」 { #step-3-create-a-path-operation }

For instance, this example:
</p>

<pre>
	goto L  // BAD
	v := 3
L:
</pre>

<p>
is erroneous because the jump to label <code>L</code> skips
the creation of <code>v</code>.
</p>

<p>
A "goto" statement outside a <a href="#Blocks">block</a> cannot jump to a label inside that block.
For instance, this example:
</p>

<pre>

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.google.guava</groupId>
    <artifactId>guava-parent</artifactId>
    <version>999.0.0-HEAD-jre-SNAPSHOT</version>
  </parent>

versioning unchanged." fi # At this point, the bucket should exist, skip checking for existence # Set policy on the bucket echo "Setting policy of bucket '$BUCKET' to '$POLICY'." ${MC} anonymous set $POLICY myminio/$BUCKET } # Try connecting to MinIO instance {{- if .Values.tls.enabled }} scheme=https {{- else }} scheme=http {{- end }} connectToMinio $scheme {{ if .Values.buckets }} {{ $global := . }} # Create the buckets {{- range .Values.buckets }} createBucket {{ tpl .name $global }} {{ .policy | default...

  @SuppressWarnings("GoodTime") // should be a java.time.Duration
  private final long totalLoadTime;

  private final long evictionCount;

  /**
   * Constructs a new {@code CacheStats} instance.
   *
   * <p>Five parameters of the same type in a row is a bad thing, but this class is not constructed
   * by end users and is too fine-grained for a builder.
   */

    return CollectCollectors.toImmutableRangeMap(keyFunction, valueFunction);
  }

  /**
   * Returns an empty immutable range map.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked")
  public static <K extends Comparable<?>, V> ImmutableRangeMap<K, V> of() {
    return (ImmutableRangeMap<K, V>) EMPTY;
  }