return false;
    }
    node = nodeIterator.next();
    successorIterator = graph.successors(node).iterator();
    return true;
  }

  /**
   * If the graph is directed, each ordered [source, target] pair will be visited once if there is
   * an edge connecting them.
   */
  private static final class Directed<N> extends EndpointPairIterator<N> {
    private Directed(BaseGraph<N> graph) {
      super(graph);
    }

        with:
          push: ${{ contains(github.event.pull_request.labels.*.name, 'build and push to gcr.io for staging') }}
          context: ./tensorflow/tools/tf_sig_build_dockerfiles
          target: devel
          build-args: |
            PYTHON_VERSION=${{ matrix.python-version }}
            CACHEBUSTER=${{ steps.date.outputs.DATE }}
          tags: |

    echo "the rust toolchain (cargo, etc) is required for building ztunnel"
    return 1
  fi

  pushd "${BUILD_ZTUNNEL_REPO}"
  cargo build --profile="${BUILD_ZTUNNEL_PROFILE:-dev}" ${BUILD_ZTUNNEL_TARGET:+--target=${BUILD_ZTUNNEL_TARGET}}

  local ZTUNNEL_BIN_PATH
  if [[ "${BUILD_ZTUNNEL_PROFILE:-dev}" == "dev" ]]; then
      ZTUNNEL_BIN_PATH=debug
  else
      ZTUNNEL_BIN_PATH="${BUILD_ZTUNNEL_PROFILE}"
  fi

	testenv.MustHaveSymlink(t)

	tmpdir := t.TempDir()

	link := filepath.Join(tmpdir, "link")
	target := tmpdir
	if err := os.Symlink(target, link); err != nil {
		t.Fatal(err)
	}
	fi, err := os.Lstat(link)
	if err != nil {
		t.Fatal(err)
	}

	h, err := FileInfoHeader(fi, target)
	if err != nil {
		t.Fatal(err)
	}
	if g, e := h.Name, fi.Name(); g != e {

Mas por enquanto, vamos verificar essas importantes **ideias conceituais**. Esses conceitos também se aplicam a qualquer outro tipo de API da web. 💡

## Segurança - HTTPS

No [capítulo anterior sobre HTTPS](https.md){.internal-link target=_blank} aprendemos como o HTTPS fornece criptografia para sua API.

Também vimos que o HTTPS normalmente é fornecido por um componente **externo** ao seu servidor de aplicativos, um **Proxy de terminação TLS**.

 * will not be permitted to access the target file and will receive "The
 * file is being accessed by another process" message.
 */
    public static final int FILE_NO_SHARE     = 0x00;
/**
 * When specified as the <tt>shareAccess</tt> constructor parameter,
 * other SMB clients will be permitted to read from the target file while
 * this file is open. This constant may be logically OR'd with other share

{!../../docs_src/query_params_str_validations/tutorial006b.py!}
```

/// info

🚥 👆 🚫 👀 👈 `...` ⏭: ⚫️ 🎁 👁 💲, ⚫️ <a href="https://docs.python.org/3/library/constants.html#Ellipsis" class="external-link" target="_blank">🍕 🐍 &amp; 🤙 "❕"</a>.

⚫️ ⚙️ Pydantic &amp; FastAPI 🎯 📣 👈 💲 ✔.

///

👉 🔜 ➡️ **FastAPI** 💭 👈 👉 🔢 ✔.

### ✔ ⏮️ `None`

Se você utiliza uma versão anterior, ocorrerão erros ao tentar utilizar `Annotated`.

Certifique-se de [Atualizar a versão do FastAPI](../../deployment/versions.md#atualizando-as-versoes-do-fastapi){.internal-link target=_blank} para pelo menos 0.95.1 antes de usar `Annotated`.

///

### Importando `Depends`

//// tab | Python 3.10+

```Python hl_lines="3"
{!> ../../docs_src/dependencies/tutorial001_an_py310.py!}

                return false;
            }
            Element element = document.createElement("link");
            String targetId = String.format("%s.%s", classMetaData.getClassName(), href.substring(1));
            element.setAttribute("linkend", targetId);
            nodes.push(element);
            return true;
        }

        @Override
        public void onEndElement(String element) {

                                                <button type="button" class="btn btn-danger"
                                                        data-toggle="modal" data-target="#confirmToDeleteAll">
                                                    <em class="fa fa-trash">
                                                    <la:message key="labels.joblog_delete_all_link"/>