///

**FastAPI** está todo basado en Pydantic.

Vas a ver mucho más de esto en práctica en el [Tutorial - User Guide](tutorial/index.md){.internal-link target=_blank}.

## Type hints en **FastAPI**

**FastAPI** aprovecha estos type hints para hacer varias cosas.

Con **FastAPI** declaras los parámetros con type hints y obtienes:

    TF_EXCLUSIVE_LOCKS_REQUIRED(fn_body->mu) {
  input_tensors->reserve(ninputs);
  for (int i = 0; i < ninputs; ++i) {
    Node* node = inputs[i].oper ? &inputs[i].oper->node : nullptr;
    int idx = inputs[i].index;

    TF_RETURN_WITH_CONTEXT_IF_ERROR(
        fn_body->graph.IsValidOutputTensor(node, idx),
        "Encountered while processing input ", i, " into function '", fn_name,
        "'");

     * Datetime format.
     *
     * By providing the last modification timestamp, you enable search engine
     * crawlers to retrieve only a subset of the Sitemaps in the index i.e. a
     * crawler may only retrieve Sitemaps that were modified since a certain
     * date. This incremental Sitemap fetching mechanism allows for the rapid
     * discovery of new URLs on very large sites.
     */

        if (genericParameter == null) {
            return null;
        }
        assertArgumentArrayIndex("index", index, genericParameter.length);
        return genericParameter[index];
    }

    /**
     * パラメータ化された型を要素とする配列の要素型を返します。
     * <p>
     * <code>type</code>がパラメータ化された型の配列でない場合は<code>null</code>を返します。
     * </p>
     *
     * @param type
     *            パラメータ化された型を要素とする配列

                                </div>
                            </div>
                            <div class="card-footer">
                                <button type="submit" class="btn btn-outline-secondary" name="index"
                                        value="<la:message key="labels.wizard_button_cancel"/>">
                                    <la:message key="labels.wizard_button_cancel"/>
                                </button>

errors.failed_to_delete_doc_in_admin=Failed to delete document.
errors.failed_to_send_testmail=Failed to send the test mail.
errors.could_not_find_backup_index=Could not find index for backup.
errors.no_user_for_changing_password=The current password is incorrect.
errors.failed_to_change_password=Failed to change your password.
errors.unknown_version_for_upgrade=Unknown version information.

                public String toString() {
                    return name;
                }

                @Override
                public char charAt(final int index) {
                    return name.charAt(index);
                }

                @Override
                public int length() {
                    return name.length();
                }

                @Override

///

**FastAPI** tamamen Pydantic'e dayanmaktadır.

Daha fazlasini görmek için [Tutorial - User Guide](tutorial/index.md){.internal-link target=_blank}.

##  **FastAPI** tip belirteçleri

**FastAPI** birkaç şey yapmak için bu tür tip belirteçlerinden faydalanır.

import org.codelibs.fess.es.log.cbean.cq.SearchLogCQ;
import org.codelibs.fess.es.log.cbean.cq.bs.BsSearchLogCQ;
import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsSearchLogCB extends EsAbstractConditionBean {

    // ===================================================================================

Aber in realen Fällen würden Sie bei der Implementierung von Sicherheit mehr Vorteile durch die Verwendung der integrierten [Sicherheits-Werkzeuge (siehe nächstes Kapitel)](../security/index.md){.internal-link target=_blank} erzielen.

///

## Abhängigkeitsfehler und -Rückgabewerte

Sie können dieselben Abhängigkeits-*Funktionen* verwenden, die Sie normalerweise verwenden.