internal val lock: ReentrantLock = ReentrantLock()

  private val hpackBuffer: Buffer = Buffer()
  private var maxFrameSize: Int = INITIAL_MAX_FRAME_SIZE
  private var closed: Boolean = false
  val hpackWriter: Hpack.Writer = Hpack.Writer(out = hpackBuffer)

  @Throws(IOException::class)
  fun connectionPreface() {
    this.withLock {
      if (closed) throw IOException("closed")

            bytes = bytes,
          )
        }
      }

      override fun toDer(
        writer: DerWriter,
        value: AnyValue,
      ) {
        writer.write("ANY", value.tagClass, value.tag) {
          writer.writeOctetString(value.bytes)
          writer.constructed = value.constructed
        }
      }
    }

  internal fun parseGeneralizedTime(string: String): Long {

    ```

=== "Python 3.10+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="3  7  11  45  63  104  106-114  120-123  127-133  138  154"
    {!> ../../../docs_src/security/tutorial005_py310.py!}
    ```

=== "Python 3.9+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```

=== "Python 3.10+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="2  74"
    {!> ../../../docs_src/security/tutorial003_py310.py!}
    ```

=== "Python 3.8+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="4  76"

        .`when`(
          request().withPath("/person")
            .withQueryStringParameter("name", "peter"),
        )
        .respond(response().withBody("Peter the person!"))

      val response = client.newCall(Request((mockServer.endpoint + "/person?name=peter").toHttpUrl())).execute()

      assertThat(response.body.string()).contains("Peter the person")
    }
  }

  @Test
  fun testHttpsRequest() {

    ```

=== "Python 3.10+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="1  2  11-15"
    {!> ../../../docs_src/extra_data_types/tutorial001_py310.py!}
    ```

=== "Python 3.8+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="1  2  12-16"

    outputFile.bufferedWriter().use { writer ->
        writer.write(fileHeaderFor(packageName, isIncubatingFileClass(targetType, extensions)))
        writer.write("\n")
        extensions.forEach {
            writer.write("\n${it.toKotlinString()}")
        }
    }


/**

    // Use a new Writer because we don't support change the dynamic table
    // size after Writer constructed.
    val writer = Hpack.Writer(110, false, bytesOut)
    writer.writeHeaders(headerBlock)
    assertThat(bytesOut).isEqualTo(bytesIn)
    assertThat(writer.headerCount).isEqualTo(2)
    val tableLength = writer.dynamicTable.size
    var entry = writer.dynamicTable[tableLength - 1]!!

    ```

=== "Python 3.8+"

    ```Python hl_lines="2  7  11"
    {!> ../../../docs_src/security/tutorial006_an.py!}
    ```

=== "Python 3.8+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="2  6  10"
    {!> ../../../docs_src/security/tutorial006.py!}
    ```

   * may trigger an [OutOfMemoryError]. Prefer to stream the response body if this is a
   * possibility for your response.
   */
  @Throws(IOException::class)
  fun bytes() = commonBytes()

  /**
   * Returns the response as a [ByteString].
   *
   * This method loads entire response body into memory. If the response body is very large this
   * may trigger an [OutOfMemoryError]. Prefer to stream the response body if this is a