override fun getAcceptedIssuers(): Array<X509Certificate> = delegate.acceptedIssuers

  override fun checkServerTrusted(
    chain: Array<out X509Certificate>,
    authType: String,
    socket: Socket,
  ) {
    if (socket.peerName() !in insecureHosts) {
      delegate.checkServerTrusted(chain, authType, socket)
    }
  }

  override fun checkServerTrusted(
    chain: Array<out X509Certificate>,
    authType: String,

    private lateinit var enabledProtocols: Array<String>
    private lateinit var supportedCipherSuites: Array<String>
    private lateinit var enabledCipherSuites: Array<String>

    override fun getEnabledProtocols(): Array<String> {
      return enabledProtocols
    }

    override fun setEnabledProtocols(protocols: Array<String>) {
      this.enabledProtocols = protocols
    }

      if (result == null) result = ArrayList(2)
      result.add(value(i))
    }
  }
  return result?.toList().orEmpty()
}

internal fun Headers.commonIterator(): Iterator<Pair<String, String>> {
  return Array(size) { name(it) to value(it) }.iterator()
}

internal fun Headers.commonNewBuilder(): Headers.Builder {
  val result = Headers.Builder()
  result.namesAndValues += namesAndValues
  return result
}

    }
  }

  class FakeSSLSession(
    private val protocol: String,
    private val cipherSuite: String,
    private val peerCertificates: Array<Certificate>?,
    private val localCertificates: Array<Certificate>?,
  ) : DelegatingSSLSession(null) {
    override fun getProtocol() = protocol

    override fun getCipherSuite() = cipherSuite

The [SliceAt(typ Type, p unsafe.Pointer, len int)] function
returns a Value representing a slice whose underlying array starts

  private class TlsFallbackScsvDisabledSSLSocket(
    socket: SSLSocket,
  ) : DelegatingSSLSocket(socket) {
    override fun setEnabledCipherSuites(suites: Array<String>) {
      val enabledCipherSuites = mutableListOf<String>()
      for (suite in suites) {
        if (suite != TLS_FALLBACK_SCSV) {
          enabledCipherSuites.add(suite)
        }
      }

    fileSystem.read(file) {
      return readStory(this)
    }
  }

  /** Iterate through the hpack-test-case resources, only picking stories for the current draft.  */
  fun storiesForCurrentDraft(): Array<String> {
    val resource =
      HpackJsonUtil::class.java.getResource("/hpack-test-case")
        ?: return arrayOf()

    val testCaseDirectory = File(resource.toURI()).toOkioPath()

    /** The protocol the server selected. */
    var selected: String? = null

    @Throws(Throwable::class)
    override fun invoke(
      proxy: Any,
      method: Method,
      args: Array<Any>?,
    ): Any? {
      val callArgs = args ?: arrayOf<Any?>()
      val methodName = method.name
      val returnType = method.returnType

          listOf()
        }

      return Handshake(
        tlsVersion,
        cipherSuite,
        localCertificates.toImmutableList(),
      ) { peerCertificatesCopy }
    }

    private fun Array<out Certificate>?.toImmutableList(): List<Certificate> {
      return if (this != null) {
        immutableListOf(*this)
      } else {
        emptyList()
      }
    }

    @Throws(IOException::class)

    再一次，可以把 `dataclasses` 与标准类型注解一起使用；

8. 注意，*路径操作函数*使用的是普通函数，不是异步函数；

    与往常一样，在 FastAPI 中，可以按需组合普通函数与异步函数；

    如果不清楚何时使用异步函数或普通函数，请参阅**急不可待？**一节中对 <a href="https://fastapi.tiangolo.com/async/#in-a-hurry" target="_blank" class="internal-link">`async` 与 `await`</a> 的说明；

9. *路径操作函数*返回的不是数据类（虽然它可以返回数据类），而是返回内含数据的字典列表；

    FastAPI 使用（包含数据类的） `response_model` 参数转换响应。

把 `dataclasses` 与其它类型注解组合在一起，可以组成不同形式的复杂数据结构。