{* ../../docs_src/query_params_str_validations/tutorial001.py hl[9] *}

O parâmetro de consulta `q` é do tipo `Union[str, None]`, o que significa que é do tipo `str` mas que também pode ser `None`, e de fato, o valor padrão é `None`, então o FastAPI saberá que não é obrigatório.

/// note | Observação

O FastAPI saberá que o valor de `q` não é obrigatório por causa do valor padrão `= None`.

    assertThat(actual).isEqualTo(expected)
  }

  private fun intArrayToByteArray(bytes: IntArray): ByteString {
    val data = ByteArray(bytes.size)
    for (i in bytes.indices) {
      data[i] = bytes[i].toByte()
    }
    return ByteString.of(*data)
  }

  private fun readerHeaderTableLength(): Int = hpackReader!!.dynamicTable.size

Dies und die einfache Tatsache, dass Python die Hauptsprache für **Data Science**, maschinelles Lernen und insbesondere Deep Learning ist, machen FastAPI zu einem sehr passenden Werkzeug für Web-APIs und Anwendungen für Data Science / maschinelles Lernen (neben vielen anderen).

        src[srcIndex + 7] = 0x00;
        src[srcIndex + 8] = 0x00;
        src[srcIndex + 9] = 0x00;
        // rDataLength (2 bytes)
        src[srcIndex + 10] = 0x00;
        src[srcIndex + 11] = 0x06; // 6 bytes of data

        // Initialize questionName to avoid NPE
        Field questionNameField = NameServicePacket.class.getDeclaredField("questionName");
        questionNameField.setAccessible(true);

and [C++](https://www.tensorflow.org/api_docs/cc) APIs, as well as a
non-guaranteed backward compatible API for
[other languages](https://www.tensorflow.org/api_docs).

Keep up-to-date with release announcements and security updates by subscribing
to
[******@****.***](https://groups.google.com/a/tensorflow.org/forum/#!forum/announce).
See all the [mailing lists](https://www.tensorflow.org/community/forums).

import com.google.common.cache.LoadingCache;

/**
 * Helper class for managing Fess plugins and artifacts.
 * This class provides functionality to discover, install, and manage various types of plugins
 * including data stores, themes, ingest processors, scripts, web applications, thumbnails, and crawlers.
 */
public class PluginHelper {
    /** Logger instance for this class */

     */
    int getMaximumBufferSize();

    /**
     *
     * Property {@code jcifs.smb.client.transaction_buf_size} (int, default 65535)
     *
     * @return maximum data size for SMB transactions
     */
    int getTransactionBufferSize();

    /**
     *
     * Property {@code jcifs.smb.maxBuffers} (int, default 16)
     *
     * @return number of buffers to keep in cache

							<em class="fa fa-search">
						</button>
					</div>
				</div>
			</form>
		</c:if>
		<nav class="mt-2">

		<ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu">
			<li class="nav-header"><la:message key="labels.sidebar.menu" /></li>
			<c:if test="${fe:permission('admin-dashboard-view')}">
				<li class="nav-item">

         */
        public int level;
        /**
         * The share information container.
         */
        public NdrObject info;
        /**
         * The preferred maximum length of returned data.
         */
        public int prefmaxlen;
        /**
         * The total number of entries.
         */
        public int totalentries;
        /**
         * The resume handle for enumeration.

    * So, the **certificate and encryption** handling is done **before HTTP**.
* **TCP doesn't know about "domains"**. Only about IP addresses.
    * The information about the **specific domain** requested goes in the **HTTP data**.
* The **HTTPS certificates** "certify" a **certain domain**, but the protocol and encryption happen at the TCP level, **before knowing** which domain is being dealt with.