src[srcIndex + 16] = 0x00; // hex code
        src[srcIndex + 17] = (byte) 0xFE; // All flags except one: 11111110
        // Bit 7: group (1)
        // Bits 6-5: owner node type (11 = 3)
        // Bit 4: being deleted (1)
        // Bit 3: in conflict (1)
        // Bit 2: active (1)
        // Bit 1: permanent (1)

        // MAC address

# 產生 SDK { #generating-sdks }

由於 **FastAPI** 建立在 **OpenAPI** 規格之上，其 API 能以許多工具都能理解的標準格式來描述。

這讓你能輕鬆產生最新的**文件**、多語言的用戶端程式庫（<abbr title="Software Development Kits - 軟體開發套件">**SDKs**</abbr>），以及與程式碼保持同步的**測試**或**自動化工作流程**。

在本指南中，你將學會如何為你的 FastAPI 後端產生 **TypeScript SDK**。

## 開源 SDK 產生器 { #open-source-sdk-generators }

其中一個相當萬用的選擇是 [OpenAPI Generator](https://openapi-generator.tech/)，它支援**多種程式語言**，並能從你的 OpenAPI 規格產生 SDK。

   * @param arrays zero or more {@code double} arrays
   * @return a single array containing all the values from the source arrays, in order
   * @throws IllegalArgumentException if the total number of elements in {@code arrays} does not fit
   *     in an {@code int}
   */
  public static double[] concat(double[]... arrays) {
    long length = 0;
    for (double[] array : arrays) {
      length += array.length;
    }

# SDK 생성하기 { #generating-sdks }

**FastAPI**는 **OpenAPI** 사양을 기반으로 하므로, FastAPI의 API는 많은 도구가 이해할 수 있는 표준 형식으로 설명할 수 있습니다.

덕분에 여러 언어용 클라이언트 라이브러리(<abbr title="Software Development Kits - 소프트웨어 개발 키트">**SDKs**</abbr>), 최신 **문서**, 그리고 코드와 동기화된 **테스트** 또는 **자동화 워크플로**를 쉽게 생성할 수 있습니다.

이 가이드에서는 FastAPI 백엔드용 **TypeScript SDK**를 생성하는 방법을 배웁니다.

## 오픈 소스 SDK 생성기 { #open-source-sdk-generators }

// 3 the component model -> interfaces for the plugin

// The plugin manager should load up a directory structure of plugins.
// - a plugin per directory where the plugin is present with its deps
// - a plugin that has its dependencies packaged up with it
// - implement filters and create a test where a plugin fails if the right classes are not filtered

---

**FastAPI** doesn't make any compromise with any database, data model or tool.

It gives you all the flexibility to choose the ones that fit your project the best.

And you can use directly many well maintained and widely used packages like `pwdlib` and `PyJWT`, because **FastAPI** doesn't require any complex mechanisms to integrate external packages.

      return MoreObjects.firstNonNull(existing, created);
    }

    @Override
    public int size() {
      return size;
    }
  }

  /** A bit mask were all bits are set. */
  private static final int ALL_SET = ~0;

  private static int ceilToPowerOfTwo(int x) {
    return 1 << IntMath.log2(x, RoundingMode.CEILING);
  }

  /*

        // Then
        assertTrue(response.haveCapabilitiy(0x01)); // Has this bit
        assertTrue(response.haveCapabilitiy(0x0F)); // Has all these bits
        assertFalse(response.haveCapabilitiy(0x10)); // Doesn't have this bit
        assertFalse(response.haveCapabilitiy(0x40)); // Doesn't have this bit
    }

    @Test

   * tables, that otherwise encounter collisions for hash codes that do not differ in lower or upper
   * bits.
   *
   * @param h hash code
   */
  static int rehash(int h) {
    // Spread bits to regularize both segment and index locations,
    // using variant of single-word Wang/Jenkins hash.
    // TODO(kevinb): use Hashing/move this to Hashing?

					p.errorf("invalid addressing modes for third operand to %s instruction, must be register", op)
					return
				}
				prog.RegTo2 = a[2].Reg
			case arch.IsARM64TBL(op):
				// one of its inputs does not fit into prog.Reg.
				prog.From = a[0]
				prog.AddRestSource(a[1])
				prog.To = a[2]
			case arch.IsARM64CASP(op):
				prog.From = a[0]
				prog.To = a[1]