import assertk.assertions.isNull
import assertk.assertions.startsWith
import java.io.IOException
import java.net.SocketException
import java.security.GeneralSecurityException
import java.security.SecureRandom
import java.security.cert.X509Certificate
import java.util.Arrays
import javax.net.ssl.KeyManager
import javax.net.ssl.SSLContext
import javax.net.ssl.SSLException
import javax.net.ssl.SSLHandshakeException

                        "description": "Successful Response",
                        "content": {
                            "application/json": {



...
```

#### À quoi sert OpenAPI

Le schéma **OpenAPI** est ce qui alimente les deux systèmes de documentation interactive.

Comme nous devons remplacer la valeur par défaut `None` dans la fonction par `Query()`, nous pouvons maintenant définir la valeur par défaut avec le paramètre `Query(default=None)`, il sert le même objectif qui est de définir cette valeur par défaut.

Donc :

```Python
q: Union[str, None] = Query(default=None)
```

... rend le paramètre optionnel, et est donc équivalent à :

```Python

import java.net.URI
import java.net.URL
import java.nio.charset.Charset
import java.security.KeyPair
import java.security.KeyPairGenerator
import java.security.Principal
import java.security.cert.Certificate
import java.security.cert.X509Certificate
import java.time.Duration
import java.time.Instant
import java.util.Date
import java.util.concurrent.ExecutorService
import java.util.concurrent.Executors

import java.net.HttpURLConnection.HTTP_UNAUTHORIZED
import java.net.HttpURLConnection.HTTP_UNAVAILABLE
import java.net.ProtocolException
import java.net.Proxy
import java.net.SocketTimeoutException
import java.security.cert.CertificateException
import javax.net.ssl.SSLHandshakeException
import javax.net.ssl.SSLPeerUnverifiedException
import okhttp3.Interceptor
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.Response

        DummyPlainSMB next = new DummyPlainSMB();
        DummyAndXBlock block = new DummyAndXBlock(next);
        block.customBatchLimit = 1; // allow 1, but we'll set batchLevel to meet limit
        block.batchLevel = 1; // batchLevel >= limit prevents chaining

        byte[] buf = new byte[128];
        int n = block.writeAndXWireFormat(buf, 0);

        assertTrue(n > 0);

  2. You may modify your copy or copies of the Library or any portion
of it, thus forming a work based on the Library, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:

    a) The modified work must itself be a software library.

    b) You must cause the files modified to carry prominent notices
    stating that you changed the files and the date of any change.

filed. 

4. Redistribution. You may reproduce and distribute copies of the Work or 
Derivative Works thereof in any medium, with or without modifications, and 
in Source or Object form, provided that You meet the following conditions: 

a. You must give any other recipients of the Work or Derivative Works a copy 
of this License; and 

b. You must cause any modified files to carry prominent notices stating that 

   4. Redistribution. You may reproduce and distribute copies of the
      Work or Derivative Works thereof in any medium, with or without
      modifications, and in Source or Object form, provided that You
      meet the following conditions:

      (a) You must give any other recipients of the Work or
          Derivative Works a copy of this License; and

      (b) You must cause any modified files to carry prominent notices

    int getValidationLevel();

    /**
     * Sets the level of validation to perform on processed models. For building of projects,
     * {@link #VALIDATION_LEVEL_STRICT} should be used to ensure proper building. For the mere retrieval of dependencies
     * during artifact resolution, {@link #VALIDATION_LEVEL_MINIMAL} should be used to account for models of poor
     * quality. By default, models are validated in strict mode.
     *