<div class="termy">

```console
$ pip install jinja2

---> 100%
```

</div>

## Using `Jinja2Templates` { #using-jinja2templates }

* Import `Jinja2Templates`.
* Create a `templates` object that you can reuse later.
* Declare a `Request` parameter in the *path operation* that will return a template.

from fastapi import FastAPI, Query

app = FastAPI()


@app.get("/items/")
async def read_items(
    q: str | None = Query(
        default=None,
        alias="item-query",
        title="Query string",
        description="Query string for the items to search in the database that have a good match",
        min_length=3,
        max_length=50,
        pattern="^fixedquery$",
        deprecated=True,
    ),
):

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.pager;

import java.io.Serializable;
import java.util.List;

import org.codelibs.fess.util.ComponentUtil;

/**
 * Pager class for stemmer override dictionary management.
 *
 * This class provides pagination functionality for displaying stemmer override

 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.internal.witness;

import jcifs.dcerpc.DcerpcMessage;
import jcifs.dcerpc.ndr.NdrBuffer;
import jcifs.dcerpc.ndr.NdrException;

/**
 * Base class for SMB Witness Protocol RPC messages as defined in MS-SWN specification.

## 示例升级

现在修改 `main.py` 文件来从 `PUT` 请求中接收请求体。

我们借助 Pydantic 来使用标准的 Python 类型声明请求体。

```Python hl_lines="4  9-12  25-27"
from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


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


@app.get("/")

 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.smb1.smb1;

import java.util.Date;

import jcifs.smb1.util.Hexdump;

class Trans2QueryPathInformationResponse extends SmbComTransactionResponse {

    // information levels
    static final int SMB_QUERY_FILE_BASIC_INFO = 0x101;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.internal

import java.util.concurrent.atomic.AtomicReference
import kotlin.reflect.KClass

/**
 * An immutable collection of key-value pairs implemented as a singly-linked list.
 *

import groovy.lang.GroovySystem
import org.gradle.util.internal.VersionNumber

plugins {
    `java-platform`
}

group = "gradlebuild"

description = "Provides a platform that constrains versions of external dependencies used by Gradle"

// Here you should declare versions which should be shared by the different modules of buildSrc itself
val javaParserVersion = "3.18.0"

[
	uuid(12345778-1234-abcd-ef00-0123456789ac),
	version(1.0)
]
interface samr
{
	import "../rpc.idl";
	import "lsarpc.idl";

	typedef [v1_enum] enum {
		ACB_DISABLED               = 0x00000001, /* 1 = User account disabled */
		ACB_HOMDIRREQ              = 0x00000002, /* 1 = Home directory required */
		ACB_PWNOTREQ               = 0x00000004, /* 1 = User password not required */

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.core.beans.impl;

import static org.codelibs.core.misc.AssertionUtil.assertArgumentNotNull;

import org.codelibs.core.beans.ParameterizedClassDesc;

/**
 * Implementation class of {@link ParameterizedClassDesc}.
 *
 * @author koichik
 */