{* ../../docs_src/dependencies/tutorial013_an_py310.py ln[30:38] hl[31:33] *}

Da `generate_stream()` die Datenbanksession jedoch nicht verwendet, ist es nicht wirklich notwendig, die Session während des Sendens der Response offen zu halten.

Wenn Sie diesen spezifischen Anwendungsfall mit SQLModel (oder SQLAlchemy) haben, könnten Sie die Session explizit schließen, nachdem Sie sie nicht mehr benötigen:

All the security schemes defined in OpenAPI, including:

* HTTP Basic.
* **OAuth2** (also with **JWT tokens**). Check the tutorial on [OAuth2 with JWT](tutorial/security/oauth2-jwt.md).
* API keys in:
    * Headers.
    * Query parameters.
    * Cookies, etc.

Plus all the security features from Starlette (including **session cookies**).

Todos os esquemas de seguranças definidos no OpenAPI, incluindo:

* HTTP Basic.
* **OAuth2** (também com **tokens JWT**). Confira o tutorial em [OAuth2 com JWT](tutorial/security/oauth2-jwt.md).
* Chaves de API em:
    * Headers.
    * parâmetros da Query.
    * Cookies etc.

Além disso, todos os recursos de segurança do Starlette (incluindo **cookies de sessão**).

/// check | 启发 **FastAPI**：

寻找获得卓越性能的方法。

与 Hug（Hug 基于 Falcon）一起，启发 **FastAPI** 在函数中声明一个 `response` 参数。尽管在 FastAPI 中它是可选的，主要用于设置 headers、cookies 和可选的状态码。

///

### [Molten](https://moltenframework.com/) { #molten }

我在构建 **FastAPI** 的早期阶段发现了 Molten。它有不少相似的想法：

* 基于 Python 类型提示。
* 从这些类型获得校验与文档。
* 依赖注入系统。

        )
      socket.source.timeout().timeout(readTimeoutMillis.toLong(), TimeUnit.MILLISECONDS)
      socket.sink.timeout().timeout(writeTimeoutMillis.toLong(), TimeUnit.MILLISECONDS)
      tunnelCodec.writeRequest(nextRequest.headers, requestLine)
      tunnelCodec.finishRequest()
      val response =
        tunnelCodec
          .readResponseHeaders(false)!!
          .request(nextRequest)
          .build()

* the form model
* the model object

* the class
* the base class
* the parent class
* the subclass
* the child class
* the sibling class
* the class method

* the header
* the headers
* the authorization header
* the `Authorization` header
* the forwarded header

* the dependency injection system
* the dependency
* the dependable
* the dependant

* I/O bound
* CPU bound

    ],
    deps = [
        ":c_api_internal",
    ],
)

# -----------------------------------------------------------------------------
# Public targets

filegroup(
    name = "headers",
    srcs = [
        "c_api.h",
        "c_api_experimental.h",
        "c_api_macros.h",
        "tensor_interface.h",
        "tf_attrtype.h",
        "tf_buffer.h",
        "tf_datatype.h",

 * canceling may break the entire connection.
 */
class RealCall(
  val client: OkHttpClient,
  /** The application's original request unadulterated by redirects or auth headers. */
  val originalRequest: Request,
  val forWebSocket: Boolean,
) : Call,
  Cloneable,
  Lockable {
  private val connectionPool: RealConnectionPool = client.connectionPool.delegate

  @Volatile

import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.collect.testing.features.MapFeature;
import com.google.common.collect.testing.testers.MapEntrySetTester;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.io.Serializable;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.Collections;

 * It extends {@link HcHttpClient} and provides various configurations and settings
 * for making HTTP requests, including connection timeouts, proxy settings, user agent,
 * request headers, cookie management, and SSL configurations. The client also supports
 * robots.txt parsing and form-based authentication schemes.
 *
 * @see HcHttpClient
 */
public class Hc5HttpClient extends HcHttpClient {