```

これを「呼び出し可能」なものと呼びます。

## 依存関係としてのクラス

Pythonのクラスのインスタンスを作成する際に、同じ構文を使用していることに気づくかもしれません。

例えば:

```Python
class Cat:
    def __init__(self, name: str):
        self.name = name


fluffy = Cat(name="Mr Fluffy")
```

この場合、`fluffy`は`Cat`クラスのインスタンスです。

そして`fluffy`を作成するために、`Cat`を「呼び出している」ことになります。

そのため、Pythonのクラスもまた「呼び出し可能」です。

from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


class User(BaseModel):
    username: str
    full_name: Union[str, None] = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item, user: User):

package util

import common.Arch
import common.Os
import configurations.DownloadGitRepoToEc2Agent
import jetbrains.buildServer.configs.kotlin.Project

object UtilProject : Project({
    id("Util")
    name = "Util"

    buildType(RerunFlakyTest(Os.LINUX))
    buildType(RerunFlakyTest(Os.WINDOWS))
    buildType(RerunFlakyTest(Os.MACOS, Arch.AMD64))
    buildType(RerunFlakyTest(Os.MACOS, Arch.AARCH64))
    buildType(WarmupEc2Agent)

- 2 つの対話的なドキュメントのWebインターフェイスを直接提供します。

---

まだ表面的な部分に触れただけですが、もう全ての仕組みは分かっているはずです。

以下の行を変更してみてください:

```Python
    return {"item_name": item.name, "item_id": item_id}
```

...以下を:

```Python
        ... "item_name": item.name ...
```

...以下のように:

```Python
        ... "item_price": item.price ...
```

...そして、エディタが属性を自動補完し、そのタイプを知る方法を確認してください。:

from fastapi import Depends, FastAPI, HTTPException, Query
from sqlmodel import Field, Session, SQLModel, create_engine, select


class Hero(SQLModel, table=True):
    id: int | None = Field(default=None, primary_key=True)
    name: str = Field(index=True)
    age: int | None = Field(default=None, index=True)
    secret_name: str


sqlite_file_name = "database.db"
sqlite_url = f"sqlite:///{sqlite_file_name}"

 * By default this method does NOT execute ITs anymore, just "install".
 *
 * mavenBuild("<jdk>", "<profiles> <goals> <plugins> <properties>"
 *
 * @param jdk the jdk tool name (in jenkins) to use for this build
 * @param extraArgs extra command line args
 */
def mavenBuild(jdk, extraArgs) {
  script {
    try {
      withEnv(["JAVA_HOME=${tool "$jdk"}",

fun buildScanCustomValueParam(
    key: String,
    value: String,
) = """-Dscan.value.$key=$value"""

fun TestCoverage.asBuildScanCustomValue() =
    testType.name.toCamelCase().toCapitalized() +
        testJvmVersion.toCapitalized() +
        "${vendor.displayName}${os.asName()}${arch.asName()}"

// Generates a Build Scan custom value "PartOf=X,Y,Z"

    names.

    Should be called only after all routes have been added.
    """
    for route in app.routes:
        if isinstance(route, APIRoute):
            route.operation_id = route.name  # in this case, 'read_items'

    return mediaType;
  }

  /*
   * The following constants are grouped by their type and ordered alphabetically by the constant
   * name within that type. The constant name should be a sensible identifier that is closest to the
   * "common name" of the media. This is often, but not necessarily the same as the subtype.
   *
   * Be sure to declare all constants with the type and subtype in all lowercase. For types that

from typing import Union

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


class User(BaseModel):
    username: str
    full_name: Union[str, None] = None


@app.put("/items/{item_id}")