reg := uint8(bits.TrailingZeros64(mask))
			mask &^= 1 << reg

			registers[reg] = append(registers[reg], SlotID(k))
		}
	}
	state.slots, state.registers = slots, registers
}

func (s *debugState) LocString(loc VarLoc) string {
	if loc.absent() {
		return "<nil>"
	}

	var storage []string
	if loc.onStack() {
		storage = append(storage, fmt.Sprintf("@%+d", loc.stackOffsetValue()))
	}

    ```

## Descrição do docstring

Como as descrições tendem a ser longas e cobrir várias linhas, você pode declarar a descrição da *operação de rota* na <abbr title="uma string de várias linhas como a primeira expressão dentro de uma função (não atribuída a nenhuma variável) usada para documentação">docstring</abbr> da função e o **FastAPI** irá lê-la de lá.

```Python hl_lines="6"
{!../../../docs_src/path_operation_advanced_configuration/tutorial003.py!}
```

## Descripción avanzada desde el docstring

Puedes limitar las líneas usadas desde el docstring de una *operación de path* para OpenAPI.

Agregar un `\f` (un carácter de "form feed" escapado) hace que **FastAPI** trunque el output utilizada para OpenAPI en ese punto.

{!../../../docs_src/path_operation_configuration/tutorial003.py!}
```

## docstringを用いた説明

説明文は長くて複数行におよぶ傾向があるので、関数<abbr title="ドキュメントに使用される関数内の最初の式（変数に代入されていない）としての複数行の文字列">docstring</abbr>内に*path operation*の説明文を宣言できます。すると、**FastAPI** は説明文を読み込んでくれます。

docstringに<a href="https://en.wikipedia.org/wiki/Markdown" class="external-link" target="_blank">Markdown</a>を記述すれば、正しく解釈されて表示されます。（docstringのインデントを考慮して）

```Python hl_lines="19-27"

        final String docString = getXmlString(document);
        final String pnString = getXmlString(pruneNode);
        assertTrue(docString.contains("<SCRIPT>"));
        assertTrue(docString.contains("foo"));
        assertTrue(docString.contains("<NOSCRIPT>"));
        assertTrue(docString.contains("bar"));
        assertTrue(pnString.contains("<SCRIPT>"));

    ```

## Description from docstring

As descriptions tend to be long and cover multiple lines, you can declare the *path operation* description in the function <abbr title="a multi-line string as the first expression inside a function (not assigned to any variable) used for documentation">docstring</abbr> and **FastAPI** will read it from there.

    ```

## Beschreibung mittels Docstring

Da Beschreibungen oft mehrere Zeilen lang sind, können Sie die Beschreibung der *Pfadoperation* im <abbr title="Ein mehrzeiliger String (keiner Variable zugewiesen) als erster Ausdruck in einer Funktion, wird für die Dokumentation derselben verwendet">Docstring</abbr> der Funktion deklarieren, und **FastAPI** wird sie daraus auslesen.

# limitations under the License.
# ==============================================================================

# RUN: (! %p/exported_python_args 2>&1) | FileCheck %s

# pylint: disable=missing-docstring,line-too-long,dangerous-default-value
import tensorflow.compat.v2 as tf
from tensorflow.compiler.mlir.tensorflow.tests.tf_saved_model import common


class TestModule(tf.Module):

# limitations under the License.
# ==============================================================================

# RUN: %p/debug_info | FileCheck %s

# pylint: disable=missing-docstring,line-too-long
import tensorflow.compat.v2 as tf
from tensorflow.compiler.mlir.tensorflow.tests.tf_saved_model import common


class TestModule(tf.Module):

  @tf.function(input_signature=[

路径装饰器还支持 `summary` 和 `description` 这两个参数：

```Python hl_lines="20-21"
{!../../../docs_src/path_operation_configuration/tutorial003.py!}
```

## 文档字符串（`docstring`）

描述内容比较长且占用多行时，可以在函数的 <abbr title="函数中作为第一个表达式，用于文档目的的一个多行字符串（并没有被分配个任何变量）">docstring</abbr> 中声明*路径操作*的描述，**FastAPI** 支持从文档字符串中读取描述内容。