from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float


class ResponseMessage(BaseModel):
    message: str


class User(BaseModel):
    username: str
    email: str


@app.post("/items/", response_model=ResponseMessage, tags=["items"])
async def create_item(item: Item):
    return {"message": "Item received"}

///

//// tab | `pip`

<div class="termy">

```console
$ pip install "fastapi[standard]"

---> 100%
```

</div>

////

//// tab | `uv`

Wenn Sie <a href="https://github.com/astral-sh/uv" class="external-link" target="_blank">`uv`</a> haben:

<div class="termy">

```console
$ uv pip install "fastapi[standard]"
---> 100%
```

 * </p>
 * <p>
 * Additionally this class contains a clone of the MavenSession, which is *only* needed
 * because it has as notion of a "current" project.
 * </p>
 * <strong>NOTE:</strong> This class is not part of any public api and can be changed or deleted without prior notice.
 *
 * @since 3.0
 */
public final class ProjectSegment {
    private final MavenProject project;

 */
package gradlebuild.binarycompatibility

import org.junit.Test


class KotlinNullabilityChangesTest : AbstractBinaryCompatibilityTest() {

    @Test
    fun `from non-null returning to null returning is breaking`() {

        checkNotBinaryCompatibleKotlin(
            v1 = """
                class Source {
                    val someVal: String = "some"
                    var someVar: String = "some"

def test_raises_pydantic_v1_model_in_endpoint_param() -> None:
    class ParamModelV1(BaseModel):
        name: str

    app = FastAPI()

    with pytest.raises(PydanticV1NotSupportedError):

        @app.post("/param")
        def endpoint(data: ParamModelV1):  # pragma: no cover
            return data


def test_raises_pydantic_v1_model_in_return_type() -> None:
    class ReturnModelV1(BaseModel):
        name: str

        assertThrows(
                IllegalArgumentException.class,
                () -> rtInfo.isMavenVersion("[3.0,"),
                "Bad version range wasn't rejected");

        assertThrows(
                IllegalArgumentException.class, () -> rtInfo.isMavenVersion(""), "Bad version range wasn't rejected");

        assertThrows(

          <association>
            <type>Supplement</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
      </fields>
    </class>
    <class>
      <name>Supplement</name>
      <version>1.0.0</version>
      <description>A single supplement</description>
      <fields>
        <field>
          <name>project</name>

        }
    })

enum class DocsTestType(
    val ccEnabled: Boolean,
    val docsTestName: String,
    val docsTestDesc: String,
) {
    CONFIG_CACHE_ENABLED(true, "ConfigCacheDocsTest", "Docs Test With Config Cache Enabled"),
    CONFIG_CACHE_DISABLED(false, "DocsTest", "Docs Test"),
}

class DocsTest(
    model: CIBuildModel,
    stage: Stage,
    os: Os,

E `Field` do Pydantic retorna uma instância de `FieldInfo` também.

`Body` também retorna objetos de uma subclasse de `FieldInfo` diretamente. E tem outras que você verá mais tarde que são subclasses da classe `Body`.

          ]]></description>
          <association>
            <type>String</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
      </fields>
    </class>
    <class>
      <name>Profile</name>
      <version>1.0.0</version>
      <description><![CDATA[
        Modifications to the build process which is keyed on some
        sort of environmental parameter.