Mas mesmo que você nunca use o **FastAPI**, você se beneficiaria de aprender um pouco sobre eles.

!!! note "Nota"
     Se você é um especialista em Python e já sabe tudo sobre type hints, pule para o próximo capítulo.


## Motivação

Vamos começar com um exemplo simples:

```Python
{!../../../docs_src/python_types/tutorial001.py!}
```

 * governing permissions and limitations under the License.
 */
package org.codelibs.opensearch.extension.kuromoji.index.analysis;

import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.ja.JapaneseKatakanaStemFilter;
import org.opensearch.common.settings.Settings;
import org.opensearch.env.Environment;
import org.opensearch.index.IndexSettings;
import org.opensearch.index.analysis.AbstractTokenFilterFactory;

     * @throws Exception
     */
    public void testGetLocale() throws Exception {
        assertEquals("1", LocaleUtil.getDefault(), LocaleUtil.getLocale(null));
        assertEquals("2", Locale.JAPANESE, LocaleUtil.getLocale("ja"));
        assertEquals("3", Locale.JAPAN, LocaleUtil.getLocale("ja_JP"));
    }

 * governing permissions and limitations under the License.
 */
package org.codelibs.opensearch.extension.kuromoji.index.analysis;

import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.ja.JapaneseBaseFormFilter;
import org.opensearch.common.settings.Settings;
import org.opensearch.env.Environment;
import org.opensearch.index.IndexSettings;
import org.opensearch.index.analysis.AbstractTokenFilterFactory;

 * governing permissions and limitations under the License.
 */
package org.codelibs.opensearch.extension.kuromoji.index.analysis;

import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.ja.JapaneseNumberFilter;
import org.opensearch.common.settings.Settings;
import org.opensearch.env.Environment;
import org.opensearch.index.IndexSettings;
import org.opensearch.index.analysis.AbstractTokenFilterFactory;

        value.clear();

        List<String> keys = Arrays.asList("test_2", "test_0", "lang", "test_1");
        value.put(keys.get(0), true);
        value.put(keys.get(1), 1000);
        value.put(keys.get(2), "ja");
        value.put(keys.get(3), "str");
        docMap = new DocMap(value);
        assertFalse(docMap.isEmpty());

        Set<Map.Entry<String, Object>> actual = docMap.entrySet();

## Leia o Tutorial primeiro

Você ainda pode usar a maior parte dos recursos no **FastAPI** com o conhecimento do [Tutorial - Guia de Usuário](../tutorial/index.md){.internal-link target=_blank}.

E as próximas seções assumem que você já leu ele, e que você conhece suas ideias principais.

## Curso TestDriven.io

 * governing permissions and limitations under the License.
 */
package org.codelibs.opensearch.extension.analysis;

import org.apache.lucene.analysis.TokenStream;
import org.codelibs.analysis.ja.KanjiNumberFilter;
import org.opensearch.common.settings.Settings;
import org.opensearch.env.Environment;
import org.opensearch.index.IndexSettings;
import org.opensearch.index.analysis.AbstractTokenFilterFactory;

 * governing permissions and limitations under the License.
 */
package org.codelibs.opensearch.extension.kuromoji.index.analysis;

import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.ja.JapaneseReadingFormFilter;
import org.opensearch.common.settings.Settings;
import org.opensearch.env.Environment;
import org.opensearch.index.IndexSettings;
import org.opensearch.index.analysis.AbstractTokenFilterFactory;

 * governing permissions and limitations under the License.
 */
package org.codelibs.opensearch.extension.kuromoji.index.analysis;

import java.io.Reader;

import org.apache.lucene.analysis.ja.JapaneseIterationMarkCharFilter;
import org.opensearch.common.settings.Settings;
import org.opensearch.env.Environment;
import org.opensearch.index.IndexSettings;
import org.opensearch.index.analysis.AbstractCharFilterFactory;