/**
   * Returns {@code x}, rounded to a {@code double} with the specified rounding mode. If {@code x}
   * is precisely representable as a {@code double}, its {@code double} value will be returned;
   * otherwise, the rounding will choose between the two nearest representable values with {@code
   * mode}.
   *
   * <p>For the case of {@link RoundingMode#HALF_DOWN}, {@code HALF_UP}, and {@code HALF_EVEN},

     * <p>
     * ルートディレクトリ以下のリソースのうち、ベースディレクトリで始まるパスを持つリソースがトラバースの対象となります。
     * リソースを処理するハンドラには、ルートディレクトリからの相対パスが渡されます。 例えばルートディレクトリが
     * <code>/aaa/bbb</code>で、ベースディレクトリが<code>ccc/ddd</code>の場合、
     * <code>/aaa/bbb/ccc/ddd/eee.txt</code>というリソースが存在すると、 ハンドラには
     * <code>ccc/ddd/eee.txt</code>というパスが渡されます。
     * </p>
     *
     * @param rootDir
     *            ルートディレクトリ。{@literal null}であってはいけません
     * @param baseDirectory

	},
	ErrInvalidStorageClass: {
		Code:           "InvalidStorageClass",
		Description:    "Invalid storage class.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInvalidRequestBody: {
		Code:           "InvalidArgument",
		Description:    "Body shouldn't be set for this request.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInvalidMaxUploads: {
		Code:           "InvalidArgument",

 * ExecutionException}, the error's {@linkplain #getCause() cause} comes from a failed task,
 * possibly run in another thread. That cause should itself be an {@code Error}; if not, use {@code
 * ExecutionException} or {@link UncheckedExecutionException}. This allows the client code to
 * continue to distinguish between exceptions and errors, even when they come from other threads.
 *
 * @author Chris Povirk

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email_validator</code></a> - per la validazione di email.

Usate da Starlette:

* <a href="http://docs.python-requests.org" target="_blank"><code>requests</code></a> - Richiesto se vuoi usare il `TestClient`.
* <a href="https://github.com/Tinche/aiofiles" target="_blank"><code>aiofiles</code></a> - Richiesto se vuoi usare `FileResponse` o `StaticFiles`.

   *     {@code RuntimeException} as its cause
   * @throws ExecutionError if {@code get} throws an {@code ExecutionException} with an {@code
   *     Error} as its cause
   * @throws CancellationException if {@code get} throws a {@code CancellationException}
   * @throws IllegalArgumentException if {@code exceptionClass} extends {@code RuntimeException} or

    }

    /**
     * <code>abstract</code>かどうかを返します。
     *
     * @param method
     *            メソッド。{@literal null}であってはいけません
     * @return <code>abstract</code>かどうか
     */
    public static boolean isAbstract(final Method method) {
        return Modifier.isAbstract(method.getModifiers());
    }

    /**
     * <code>public</code>かどうかを返します。
     *
     * @param method

     */
    public static final String LINE_SEPARATOR = System.getProperty("line.separator");

    /**
     * <code>path.separator</code> システムプロパティ。例えばMac OS Xなら
     * <code>&quot;:&quot;</code>
     */
    public static final String PATH_SEPARATOR = System.getProperty("path.separator");

    /**
     * <code>os.name</code> システムプロパティ。例:<code>Mac OS X</code>
     */

  protected UnicodeEscaper() {}

  /**
   * Returns the escaped form of the given Unicode code point, or {@code null} if this code point
   * does not need to be escaped. When called as part of an escaping operation, the given code point
   * is guaranteed to be in the range {@code 0 <= cp <= Character#MAX_CODE_POINT}.
   *
   * <p>If an empty array is returned, this effectively strips the input character from the

  ASSERT_EQ(errors::OK, s.code()) << s.message();
  if (isa<TracingOperation>(check_numerics_op.get())) {
    s = dyn_cast<TracingOperation>(check_numerics_op.get())
            ->SetOpName("check_numerics");
    ASSERT_EQ(errors::OK, s.code()) << s.message();
  }
  s = AddInput(check_numerics_op.get(), t.get(), &forward_op);
  ASSERT_EQ(errors::OK, s.code()) << s.message();
  string message = "This is the way!";