* `path` - ストリームするファイルのファイルパス
* `headers` - 含めたい任意のカスタムヘッダー（辞書）
* `media_type` - メディアタイプを示す文字列。未設定の場合、ファイル名やパスから推測されます
* `filename` - 設定した場合、レスポンスの `Content-Disposition` に含まれます

ファイルレスポンスには、適切な `Content-Length`、`Last-Modified`、`ETag` ヘッダーが含まれます。

{* ../../docs_src/custom_response/tutorial009_py310.py hl[2,10] *}

`response_class` パラメータを使うこともできます:

{* ../../docs_src/custom_response/tutorial009b_py310.py hl[2,8,10] *}

<div class="termy">

```console
$ cd ~/code/prisoner-of-azkaban

$ python main.py

// Error importing sirius, it's not installed 😱
Traceback (most recent call last):
    File "main.py", line 1, in <module>
        import sirius
```

</div>

---

"_If you're looking to learn one **modern framework** for building REST APIs, check out **FastAPI** [...] It's fast, easy to use and easy to learn [...]_"

"_We've switched over to **FastAPI** for our **APIs** [...] I think you'll like it [...]_"

    # via -r ci/official/requirements_updater/requirements.in
gast==0.4.0 \
    --hash=sha256:40feb7b8b8434785585ab224d1568b857edb18297e5a3047f1ba012bc83b42c1 \
    --hash=sha256:b7adcdd5adbebf1adf17378da5ba3f543684dbec47b1cda1f3997e573cd542c4
    # via -r ci/official/requirements_updater/requirements.in
google-pasta==0.2.0 \
    --hash=sha256:4612951da876b1a10fe3960d7226f0c7682cf901e16ac06e473b267a5afa8954 \

    # via -r ci/official/requirements_updater/requirements.in
gast==0.4.0 \
    --hash=sha256:40feb7b8b8434785585ab224d1568b857edb18297e5a3047f1ba012bc83b42c1 \
    --hash=sha256:b7adcdd5adbebf1adf17378da5ba3f543684dbec47b1cda1f3997e573cd542c4
    # via -r ci/official/requirements_updater/requirements.in
google-pasta==0.2.0 \
    --hash=sha256:4612951da876b1a10fe3960d7226f0c7682cf901e16ac06e473b267a5afa8954 \

    # via -r ci/official/requirements_updater/requirements.in
gast==0.4.0 \
    --hash=sha256:40feb7b8b8434785585ab224d1568b857edb18297e5a3047f1ba012bc83b42c1 \
    --hash=sha256:b7adcdd5adbebf1adf17378da5ba3f543684dbec47b1cda1f3997e573cd542c4
    # via -r ci/official/requirements_updater/requirements.in
google-pasta==0.2.0 \
    --hash=sha256:4612951da876b1a10fe3960d7226f0c7682cf901e16ac06e473b267a5afa8954 \

    dns.assertRequests(PROXY_A_HOST, PROXY_B_HOST)
    assertRoute(selection2.next(), address, proxyB, dns.lookup(PROXY_B_HOST, 0), PROXY_B_PORT)
    assertThat(selection2.hasNext()).isFalse()

    // Confirm the last selection contains the postponed route from ProxyA.
    val selection3 = routeSelector.next()
    dns.assertRequests()
    assertRoute(selection3.next(), address, proxyA, dns.lookup(PROXY_A_HOST, 0), PROXY_A_PORT)

   */
  public static double factorial(int n) {
    checkNonNegative("n", n);
    if (n > MAX_FACTORIAL) {
      return Double.POSITIVE_INFINITY;
    } else {
      // Multiplying the last (n & 0xf) values into their own accumulator gives a more accurate
      // result than multiplying by everySixteenthFactorial[n >> 4] directly.
      double accum = 1.0;
      for (int i = 1 + (n & ~0xf); i <= n; i++) {

  }

  /**
   * Returns an unmodifiable {@code Iterable} over the nodes reachable from {@code startNode}, in
   * the order of a depth-first post-order traversal. "Post-order" implies that nodes appear in the
   * {@code Iterable} in the order in which they are visited for the last time.
   *
   * <p><b>Example:</b> The following graph with {@code startNode} {@code a} would return nodes in

                    hasChanges = true;
                }
            }
        }

        return hasChanges;
    }

    /**
     * Determines if the parent is part of the same reactor (multi-module project)
     * vs. an external parent POM by checking if the parent exists in the pomMap.
     */