## `SQLModel` installieren { #install-sqlmodel }

Stellen Sie zunächst sicher, dass Sie Ihre [virtuelle Umgebung](../virtual-environments.md) erstellen, sie aktivieren und dann `sqlmodel` installieren:

<div class="termy">

```console
$ pip install sqlmodel
---> 100%
```

</div>

/>\n   * By default, it is set to no-op.<br />\n   * Access Popper.js instance with `data.instance`.\n   * @prop {onCreate}\n   */\n  onCreate: () => {},\n\n  /**\n   * Callback called when the popper is updated. This callback is not called\n   * on the initialization/creation of the popper, but only on subsequent\n   * updates.<br />\n   * By default, it is set to no-op.<br />\n   * Access Popper.js instance with `data.instance`.\n   * @prop {onUpdate}\n   */\n  onUpdate: () => {},\n\n  /**\n   *...

     * The namespace is used to organize and identify crawling activities.
     *
     * @param namespace the namespace identifier for the crawling session
     * @return this CrawlJob instance for method chaining
     */
    public CrawlJob namespace(final String namespace) {
        this.namespace = namespace;
        return this;
    }

    /**

    }

    /**
     * Factory for creating instances of {@link Traverser}.
     *
     * @author koichik
     */
    public interface TraverserFactory {
        /**
         * Creates and returns an instance of {@link Traverser}.
         *
         * @param url
         *            The URL representing the resource.
         * @param rootPackage
         *            The root package.
         * @param rootDir

  /**
   * Creates a new, empty instance of the class under test.
   *
   * @return a new, empty map instance.
   * @throws UnsupportedOperationException if it's not possible to make an empty instance of the
   *     class under test.
   */
  protected abstract Map<K, V> makeEmptyMap() throws UnsupportedOperationException;

  /**
   * Creates a new, non-empty instance of the class under test.
   *

                  @Override
                  protected SortedMap<String, String> create(Entry<String, String>[] entries) {
                    NavigableMap<String, String> map = new SafeTreeMap<>(NullsBeforeTwo.INSTANCE);
                    for (Entry<String, String> entry : entries) {
                      map.put(entry.getKey(), entry.getValue());
                    }
                    return map;
                  }

                  @Override
                  protected SortedMap<String, String> create(Entry<String, String>[] entries) {
                    NavigableMap<String, String> map = new SafeTreeMap<>(NullsBeforeTwo.INSTANCE);
                    for (Entry<String, String> entry : entries) {
                      map.put(entry.getKey(), entry.getValue());
                    }
                    return map;
                  }

     *
     * @param artifact           artifact we are interested in. Only <code>groupid</code> and <code>artifactId</code>
     *                           are needed, for instance the following code will work
     *                           <code>artifactFactory.createProjectArtifact( "org.apache.maven", "maven", "" )</code>
     * @param localRepository    local repository

    private static final String S2C_SEAL_CONSTANT = "session key to server-to-client sealing key magic constant";

    private static final String C2S_SIGN_CONSTANT = "session key to client-to-server signing key magic constant";
    private static final String C2S_SEAL_CONSTANT = "session key to client-to-server sealing key magic constant";

 *
 * <p>However, when {@link CollectionSize.Require} is used to annotate a test it behaves normally
 * (i.e. it requires the collection instance under test to be a certain size for the test to run).
 * Note that this means a test should not require more than one CollectionSize, since a particular
 * collection instance can only be one size at once.
 *
 * @author George van den Driessche
 */