def process_items(prices: dict[str, float]):
    for item_name, item_price in prices.items():
        print(item_name)

## Example

```python
from fastapi import FastAPI, status

app = FastAPI()


@app.get("/items/", status_code=status.HTTP_418_IM_A_TEAPOT)
def read_items():
    return [{"name": "Plumbus"}, {"name": "Portal Gun"}]
```

For example, let's say you define a *path operation* `/items/`:

{* ../../docs_src/behind_a_proxy/tutorial001_01_py39.py hl[6] *}

If the client tries to go to `/items`, by default, it would be redirected to `/items/`.

But before setting the *CLI Option* `--forwarded-allow-ips` it could redirect to `http://localhost:8000/items/`.

                                            <c:forEach var="p" varStatus="s"
                                                       items="${pager.pageNumberList}">
                                                <li
                                                        <c:if test="${p == pager.currentPageNumber}">class="page-item active"</c:if>>
                                                    <la:link

                        "properties": {
                            "detail": {
                                "title": "Detail",
                                "type": "array",
                                "items": {
                                    "$ref": "#/components/schemas/ValidationError"
                                },
                            }
                        },
                    },

   </url>
   <url>
      <loc>http://www.example.com/catalog?item=12&amp;desc=vacation_hawaii</loc>
      <changefreq>weekly</changefreq>
   </url>
   <url>
      <loc>http://www.example.com/catalog?item=73&amp;desc=vacation_new_zealand</loc>
      <lastmod>2004-12-23</lastmod>
      <changefreq>weekly</changefreq>
   </url>
   <url>
      <loc>http://www.example.com/catalog?item=74&amp;desc=vacation_newfoundland</loc>

# ---------------
constraints.AssertFalse.message = {item} は false にしてください。
constraints.AssertTrue.message = {item} は true にしてください。
constraints.DecimalMax.message = {item} は {value} より小さくしてください。
constraints.DecimalMin.message = {item} は {value} より大きくしてください。
constraints.Digits.message = {item} は数値でなければなりません。(期待値: <数値>.<数値>)
constraints.Future.message = {item}は将来の値にする必要があります。
constraints.Max.message = {item} は {value} 以下にしてください。

        // Test parsing field with list
        String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + "<doc>\n" + "  <field name=\"tags\">\n" + "    <list>\n"
                + "      <item>tag1</item>\n" + "      <item>tag2</item>\n" + "      <item>tag3</item>\n" + "    </list>\n" + "  </field>\n"
                + "</doc>";

        AccessResultDataImpl<?> accessResultData = new AccessResultDataImpl<>();

from typing import Annotated

from fastapi import FastAPI, Query

app = FastAPI()


@app.get("/items/")
async def read_items(q: Annotated[list[str] | None, Query()] = None):
    query_items = {"q": q}

                .orElse(OptionalEntity.empty());
    }

    /**
     * Retrieves a specific stopword item by its ID.
     *
     * @param dictId The ID of the dictionary.
     * @param id     The ID of the stopword item.
     * @return An optional entity containing the stopword item, or empty if not found.
     */
    public OptionalEntity<StopwordsItem> getStopwordsItem(final String dictId, final long id) {