## Install dependencies { #install-dependencies }

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and install `jinja2`:

<div class="termy">

```console
$ pip install jinja2

---> 100%
```

</div>

## Using `Jinja2Templates` { #using-jinja2templates }

* Import `Jinja2Templates`.
* Create a `templates` object that you can reuse later.

    /**
     * Gets the size of this message.
     *
     * @return the size of this message
     */
    int size();

    /**
     * Creates a cancel request for this request.
     *
     * @return create cancel request
     */
    CommonServerMessageBlockRequest createCancel();

    /**
     * Checks if chaining is allowed with the next request.
     *

## Use case { #use-case }

For example, imagine that you want to return an HTTP status code of "OK" `200` by default.

But if the data didn't exist, you want to create it, and return an HTTP status code of "CREATED" `201`.

But you still want to be able to filter and convert the data you return with a `response_model`.

For those cases, you can use a `Response` parameter.

      name: NAME # match object names that satisfy the wildcard expression.
      olderThan: 7d10h # match objects older than this value
      createdBefore: "2006-01-02T15:04:05.00Z" # match objects created before "date"
      tags:
        - key: name
          value: pick* # match objects with tag 'name', all values starting with 'pick'
      metadata:
        - key: content-type

        assertEquals(1, result.getDocumentList().size());
    }

    public void test_multipleBuilds() {
        // Test that each builder creates independent results
        // Create first result with one document
        SearchResult.SearchResultBuilder builder1 = SearchResult.create();
        Map<String, Object> doc1 = new HashMap<>();
        doc1.put("id", "1");
        builder1.addDocument(doc1);

   * created multimaps.
   *
   * @since 2.0
   */
  public static final class Builder<K, V> extends ImmutableMultimap.Builder<K, V> {
    /**
     * Creates a new builder. The returned builder is equivalent to the builder generated by {@link
     * ImmutableListMultimap#builder}.
     */
    public Builder() {}

    public int selectCount(CBCall<ScheduledJobCB> cbLambda) {
        return facadeSelectCount(createCB(cbLambda));
    }

    public OptionalEntity<ScheduledJob> selectEntity(CBCall<ScheduledJobCB> cbLambda) {
        return facadeSelectEntity(createCB(cbLambda));
    }

    protected OptionalEntity<ScheduledJob> facadeSelectEntity(ScheduledJobCB cb) {

    /**
     * Creates a new web crawler configuration.
     *
     * @param form the create form containing the new web config data
     * @return HTML response redirecting to the list page after creation
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse create(final CreateForm form) {
        verifyCrudMode(form.crudMode, CrudMode.CREATE);

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        response = new NtTransNotifyChangeResponse(mockConfig);
    }

    @Test
    @DisplayName("Test constructor creates instance with empty notification list")
    void testConstructor() {
        assertNotNull(response);
        assertNotNull(response.getNotifyInformation());
        assertTrue(response.getNotifyInformation().isEmpty());

            @Override
            protected SmbResource adapt(FileEntry e) {
                return mockResource1;
            }
        };

        // Then
        assertNotNull(iterator, "Iterator should be created");
        assertFalse(iterator.hasNext(), "Should not have elements");
    }

    /**
     * Test that the iterator handles null return from next correctly.
     */
    @Test