///

### 5 단계: 콘텐츠 반환

```Python hl_lines="8"
{!../../docs_src/first_steps/tutorial001.py!}
```

`dict`, `list`, 단일값을 가진 `str`, `int` 등을 반환할 수 있습니다.

Pydantic 모델을 반환할 수도 있습니다(나중에 더 자세히 살펴봅니다).

JSON으로 자동 변환되는 객체들과 모델들(ORM 등을 포함해서)이 많이 있습니다. 가장 마음에 드는 것을 사용하십시오, 이미 지원되고 있을 것입니다.

## 요약

* `FastAPI` 임포트.
* `app` 인스턴스 생성.

            csvWriter.flush();
        } catch (final IOException e) {
            logger.warn("Failed to write a sugget elevate word.", e);
        }
    }

    static String getValue(final List<String> list, final int index) {
        if (index >= list.size()) {
            return StringUtil.EMPTY;
        }
        String item = list.get(index).trim();
        if (StringUtil.isBlank(item)) {
            return StringUtil.EMPTY;

    return new NullFriendlyComparator<>();
  }

  private static final class NullFriendlyComparator<T> implements Comparator<T>, Serializable {
    @Override
    public int compare(T left, T right) {
      return String.valueOf(left).compareTo(String.valueOf(right));
    }
  }

    assertFailsWith<Exception> {
      clientReaderWithCompression.processNextFrame()
    }.also { expected ->
      assertThat(expected.message!!).contains("closed")
    }
  }

  private fun binaryData(length: Int): ByteString {
    val junk = ByteArray(length)
    random.nextBytes(junk)
    return junk.toByteString()
  }

}

type testResponseWriter struct {
	statusCode int
	response   []byte
}

func (w *testResponseWriter) Header() http.Header {
	return nil
}

func (w *testResponseWriter) Write(p []byte) (int, error) {
	w.response = append(w.response, p...)
	return len(p), nil
}

func (w *testResponseWriter) WriteHeader(statusCode int) {
	w.statusCode = statusCode
}

func (w *testResponseWriter) Flush() {

Die Hauptklasse `Response`, alle anderen Responses erben von ihr.

Sie können sie direkt zurückgeben.

Sie akzeptiert die folgenden Parameter:

* `content` – Ein `str` oder `bytes`.
* `status_code` – Ein `int`-HTTP-Statuscode.
* `headers` – Ein `dict` von Strings.
* `media_type` – Ein `str`, der den Medientyp angibt. Z. B. `"text/html"`.

            return usedDeprecatedOptions;
        }

        public void displayHelp(String command, Consumer<String> pw) {
            HelpFormatter formatter = new HelpFormatter();

            int width = MessageUtils.getTerminalWidth();
            if (width <= 0) {
                width = HelpFormatter.DEFAULT_WIDTH;
            }

            pw.accept("");

                @Override
                public Collection<Phase> phases() {
                    List<String> names = lifecycle.getPhases();
                    List<Phase> phases = new ArrayList<>();
                    for (int i = 0; i < names.size(); i++) {
                        String name = names.get(i);
                        String prev = i > 0 ? names.get(i - 1) : null;
                        phases.add(new Phase() {

```Python hl_lines="7"
{!../../docs_src/query_params_str_validations/tutorial013.py!}
```

/// note

✔️ 🤯 👈 👉 💼, FastAPI 🏆 🚫 ✅ 🎚 📇.

🖼, `List[int]` 🔜 ✅ (& 📄) 👈 🎚 📇 🔢. ✋️ `list` 😞 🚫🔜.

///

## 📣 🌅 🗃

👆 💪 🚮 🌅 ℹ 🔃 🔢.

👈 ℹ 🔜 🔌 🏗 🗄 & ⚙️ 🧾 👩‍💻 🔢 & 🔢 🧰.

/// note

///

### Step 5: return the content

{* ../../docs_src/first_steps/tutorial001.py hl[8] *}

You can return a `dict`, `list`, singular values as `str`, `int`, etc.

You can also return Pydantic models (you'll see more about that later).