from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Image(BaseModel):
    url: str
    name: str


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None
    tags: set[str] = set()
    image: Image | None = None


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

from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel as BaseModelV2
from pydantic.v1 import BaseModel


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


class ItemV2(BaseModelV2):
    name: str
    description: Union[str, None] = None
    size: float


app = FastAPI()


@app.post("/items/", response_model=ItemV2)

import common.Os
import jetbrains.buildServer.configs.kotlin.BuildType
import model.Stage

open class BaseGradleBuildType(
    open val stage: Stage? = null,
    open val failStage: Boolean = true,
    init: BaseGradleBuildType.() -> Unit = {},
) : BuildType() {
    init {
        this.init()
    }
}

open class OsAwareBaseGradleBuildType(
    val os: Os,
    override val stage: Stage? = null,

        return new ProjectModelResolver(
                repoSession,
                null,
                getContainer().lookup(RepositorySystem.class),
                getContainer().lookup(RemoteRepositoryManager.class),
                this.getRemoteRepositories(),
                ProjectBuildingRequest.RepositoryMerging.REQUEST_DOMINANT,
                null);
    }

Wenn Ihre Datei `main.py` heißt, führen Sie Ihre Anwendung so aus:

<div class="termy">

```console
$ fastapi dev main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

Öffnen Sie Ihren Browser unter <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>.

Sie sehen eine einfache Seite wie:

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):

 * under the License.
 */
package org.apache.maven.model;

/**
 * Class InputSource.
 *
 * @version $Revision$ $Date$
 */
@SuppressWarnings("all")
public class InputSource implements java.io.Serializable, Cloneable {

    // --------------------------/
    // - Class/Member Variables -/
    // --------------------------/

    /**
     *
     *

 */
package gradlebuild.docs.dsl.docbook.model

import gradlebuild.docs.dsl.source.model.ClassMetaData
import org.w3c.dom.Document
import org.w3c.dom.Element
import org.w3c.dom.Node

class ClassDoc implements DslElementDoc {
    private final String className
    private final String id
    private final String simpleName
    final ClassMetaData classMetaData
    private final Element classSection

        releasedVersions = version.map {
            ReleasedVersionsDetails(
                it.baseVersion,
                releasedVersionsFile()
            )
        }
    }
}

class LazyProjectVersion(private val version: Provider<String>) {
    override fun toString(): String = version.get()
}

group = "org.gradle"
version = LazyProjectVersion(gradleModule.identity.version.map { it.version })

//      from the plugin archive.
// TODO this will be the class that people get in IDEs to modify

/**
 * MavenExecutionPlan
 */
public class MavenExecutionPlan implements Iterable<ExecutionPlanItem> {

    /*
      At the moment, this class is totally immutable, and this is in line with thoughts about the