/**
   * @deprecated Provided to satisfy the {@code Function} interface; use {@link #get} or {@link
   *     #getUnchecked} instead.
   * @throws UncheckedExecutionException if an exception was thrown while loading the value. (As
   *     described in the documentation for {@link #getUnchecked}, {@code LoadingCache} should be
   *     used as a {@code Function} only with cache loaders that throw only unchecked exceptions.)
   */

#include "tensorflow/core/common_runtime/eager/attr_builder.h"

namespace tensorflow {
namespace gradients {

// =============== Experimental C++ API for computing gradients ===============

// Sample gradient function:
//
// class AddGradientFunction : public GradientFunction {
//  public:
//   Status Compute(Context* ctx,
//                  absl::Span<AbstractTensorHandle* const> grad_inputs,

但如果你確定在從路徑操作函式返回後就不會再使用該相依，你可以使用 `Depends(scope="function")`，告訴 FastAPI 應在路徑操作函式返回之後、但在回應送出之前關閉該相依。

{* ../../docs_src/dependencies/tutorial008e_an_py310.py hl[12,16] *}

`Depends()` 接受一個 `scope` 參數，可以是：

* `"function"`：在處理請求的路徑操作函式之前啟動相依，在路徑操作函式結束之後結束相依，但在回應送回用戶端之前。所以，相依函式會在路徑操作**函式**的「周圍」執行。
* `"request"`：在處理請求的路徑操作函式之前啟動相依（與使用 `"function"` 類似），但在回應送回用戶端之後才結束相依。所以，相依函式會在整個**請求**與回應循環的「周圍」執行。

   *     escaped for any other reason
   */
  public abstract String escape(String string);

  private final Function<String, String> asFunction = this::escape;

  /** Returns a {@link Function} that invokes {@link #escape(String)} on this escaper. */
  public final Function<String, String> asFunction() {
    return asFunction;
  }

In this case, we pass a dependency function `get_current_active_user` to `Security` (the same way we would do with `Depends`).

But we also pass a `list` of scopes, in this case with just one scope: `items` (it could have more).

And the dependency function `get_current_active_user` can also declare sub-dependencies, not only with `Depends` but also with `Security`. Declaring its own sub-dependency function (`get_current_user`), and more scope requirements.

import java.util.Map;
import java.util.NavigableMap;
import java.util.SortedMap;
import java.util.Spliterator;
import java.util.TreeMap;
import java.util.function.BiConsumer;
import java.util.function.BinaryOperator;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.stream.Collector;
import java.util.stream.Collectors;
import org.jspecify.annotations.Nullable;

/**

     */
    String[] DOS_ERROR_MESSAGES = { "The operation completed successfully.", "Incorrect function.", "Incorrect function.",
            "The system cannot find the file specified.", "Bad password.", "The system cannot find the path specified.", "reserved",
            "The client does not have the necessary access rights to perform the requested function.", "Access is denied.",

        }
        return replaceUrl(cachedPathMappingList, url);
    }

    /**
     * Creates a path matcher function for path mapping.
     *
     * @param matcher the regex matcher
     * @param replacement the replacement string
     * @return the path matcher function
     */
    public BiFunction<String, Matcher, String> createPathMatcher(final Matcher matcher, final String replacement) { // for PathMapping

## Use one HTTP operation per function

Don't mix HTTP operations in a single function, having one function per HTTP operation helps separate concerns and organize the code.

Do this:

```python
from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()

* `"request"`: 요청을 처리하는 *경로 처리 함수* 전에 의존성을 시작하고(`"function"`을 사용할 때와 유사), 응답이 클라이언트로 전송된 **후에** 종료합니다. 즉, 의존성 함수는 **요청**과 응답 사이클을 **둘러싸며** 실행됩니다.

지정하지 않고 의존성이 `yield`를 사용한다면, 기본 `scope`는 `"request"`입니다.

### 하위 의존성을 위한 `scope` { #scope-for-sub-dependencies }

`scope="request"`(기본값)로 의존성을 선언하면, 모든 하위 의존성도 `scope`가 `"request"`여야 합니다.

하지만 `scope`가 `"function"`인 의존성은 `scope`가 `"function"`인 의존성과 `"request"`인 의존성을 모두 의존성으로 가질 수 있습니다.