"istio": {
                                                    "workload": "istio-ingressgateway;istio-system;istio-ingressgateway;latest;Kubernetes"
                                                }
                                            }
                                        },
                                        "load_balancing_weight": 1

    * A Python `datetime.timedelta`.
    * In requests and responses will be represented as a `float` of total seconds.
    * Pydantic also allows representing it as a "ISO 8601 time diff encoding", <a href="https://docs.pydantic.dev/latest/concepts/serialization/#custom-serializers" class="external-link" target="_blank">see the docs for more info</a>.
* `frozenset`:
    * In requests and responses, treated the same as a `set`:

To preview `next` content in merged form using a local instance of the website, run:

```
go run golang.org/x/website/cmd/golangorg@latest -goroot=..
```

Then open http://localhost:6060/doc/next. Refresh the page to see your latest edits.

## For the release team

The `relnote` tool, at `golang.org/x/build/cmd/relnote`, operates on the files
in `doc/next`.

name: Shell formatting checks

on:
  pull_request:
    branches:
      - master

permissions:
  contents: read
    
jobs:
  build:
    name: runner / shfmt
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: luizm/action-sh-checker@master
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          SHFMT_OPTS: "-s"
        with:

name: Check issues metadata

on:
  issues:
    types: [ opened, unlabeled, closed ]

permissions: {}

jobs:
  check_issue_metadata:
    permissions:
      issues: write
    runs-on: ubuntu-latest
    steps:
      # Check that issues have proper metadata: labels and milestone
      # https://github.com/gradle/issue-management-action/blob/main/src/issue-metadata.ts

name: Add to Project

on:
  pull_request_target:
  issues:
    types:
      - opened
      - reopened

jobs:
  add-to-project:
    name: Add to project
    runs-on: ubuntu-latest
    steps:
      - uses: actions/add-to-project@v1.0.2
        with:
          project-url: https://github.com/orgs/fastapi/projects/2

**Libtensorflow Windows GPU** | Status Temporarily Unavailable                                                                                                                                                   | [Nightly Binary](https://storage.googleapis.com/libtensorflow-nightly/prod/tensorflow/release/windows/latest/gpu/windows_gpu_libtensorflow_binaries.tar.gz)...

## Pin your `fastapi` version

The first thing you should do is to "pin" the version of **FastAPI** you are using to the specific latest version that you know works correctly for your application.

For example, let's say you are using version `0.112.0` in your app.

If you use a `requirements.txt` file you could specify the version with:

```txt

name: Create Release

on:
  push:
    tags:
      - 'v*.*.*'

permissions:
  contents: write
  pull-requests: read

jobs:
  create_release:
    name: Create Release
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Generate Release Notes and Publish
        id: generate_release_notes
        uses: release-drafter/release-drafter@v6

```Python hl_lines="1  7-12  19-20"
{!../../docs_src/dataclasses/tutorial001.py!}
```

👉 🐕‍🦺 👏 **Pydantic**, ⚫️ ✔️ <a href="https://docs.pydantic.dev/latest/concepts/dataclasses/#use-of-stdlib-dataclasses-with-basemodel" class="external-link" target="_blank">🔗 🐕‍🦺 `dataclasses`</a>.

, ⏮️ 📟 🔛 👈 🚫 ⚙️ Pydantic 🎯, FastAPI ⚙️ Pydantic 🗜 📚 🐩 🎻 Pydantic 👍 🍛 🎻.