如果你创建一个导入并使用 FastAPI 的 Python 文件，然后使用虚拟环境中的 Python 运行它，它将使用你本地的 FastAPI 源码。

并且如果你更改该本地 FastAPI 的源码，由于它是通过 `-e` 安装的，当你再次运行那个 Python 文件，它将使用你刚刚编辑过的最新版本的 FastAPI。

这样，你不必再去重新"安装"你的本地版本即可测试所有更改。

/// note | "技术细节"

仅当你使用此项目中的 `requirements.txt` 安装而不是直接使用 `pip install fastapi` 安装时，才会发生这种情况。

这是因为在 `requirements.txt` 中，本地的 FastAPI 是使用“可编辑” （`-e`）选项安装的

///

### 格式化

你可以运行下面的脚本来格式化和清理所有代码：

**FastAPI** is helemaal gebaseerd op deze type hints, ze geven veel voordelen.

Maar zelfs als je **FastAPI** nooit gebruikt, heb je er baat bij om er iets over te leren.

/// note

Als je een Python expert bent en alles al weet over type hints, sla dan dit hoofdstuk over.

///

## Motivatie

Laten we beginnen met een eenvoudig voorbeeld:

```Python

    assertThat(Booleans.falseFirst().compare(true, false)).isGreaterThan(0);
  }

  public void testCompare() {
    for (boolean x : VALUES) {
      for (boolean y : VALUES) {
        // note: spec requires only that the sign is the same
        assertWithMessage(x + ", " + y)
            .that(Booleans.compare(x, y))
            .isEqualTo(Boolean.valueOf(x).compareTo(y));
      }
    }
  }

   *       List#add}, or functional update methods such as {@link
   *       com.google.common.base.Joiner#skipNulls}.
   * </ul>
   *
   * <p>Note that constructors taking a builder object cannot be tested effectively because
   * semantics of builder can be arbitrarily complex. Still, a factory class can be created in the
   * test to facilitate equality testing. For example:

    }
    return (char) value;
  }

  /**
   * Compares the two specified {@code char} values. The sign of the value returned is the same as
   * that of {@code ((Character) a).compareTo(b)}.
   *
   * <p><b>Note:</b> this method is now unnecessary and should be treated as deprecated; use the
   * equivalent {@link Character#compare} method instead.
   *
   * @param a the first {@code char} to compare

@app.get("/")
async def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
async def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

**Note**:

잘 모르겠다면, <a href="https://fastapi.tiangolo.com/async/#in-a-hurry" target="_blank">문서에서 `async`와 `await`</a>에 관한 _"급하세요?"_ 섹션을 확인해 보십시오.

</details>

### 실행하기

서버를 실행하십시오:

<div class="termy">

	// content for asynchronous deletion.
	//
	// Note: RestoreObject and HealObject requests don't end up replacing the
	// null version and therefore don't require the free-version to track
	// anything
	if fi.VersionID == "" && !fi.IsRestoreObjReq() && !fi.Healing() {
		// Note: Restore object request reuses PutObject/Multipart
		// upload to copy back its data from the remote tier. This

}

func isDirObject(object string) bool {
	if obj := encodeDirObject(object); obj != object {
		object = obj
	}
	return HasSuffix(object, globalDirSuffix)
}

// Helper method to return total number of nodes in cluster
func totalNodeCount() int {
	totalNodesCount := len(globalEndpoints.Hostnames())
	if totalNodesCount == 0 {
		totalNodesCount = 1 // For standalone erasure coding
	}
	return totalNodesCount
}

          Function<? super T, ? extends V> valueFunction) {
    return CollectCollectors.toImmutableBiMap(keyFunction, valueFunction);
  }

  /**
   * Returns the empty bimap.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  // Casting to any type is safe because the set will never hold any elements.
  @SuppressWarnings("unchecked")
  public static <K, V> ImmutableBiMap<K, V> of() {

				return
			}
			w.(http.Flusher).Flush()
		case <-ctx.Done():
			return
		}
	}
}

// ReplicationMRFHandler - POST returns info on entries in the MRF backlog for a node or all nodes
func (a adminAPIHandlers) ReplicationMRFHandler(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()

	vars := mux.Vars(r)
	bucket := vars["bucket"]