<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image02.png">
</div>

Esto significa que **siempre tendrá un valor**, solo que a veces el valor podría ser `None` (o `null` en JSON).

<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image02.png">
</div>

Isso significa que ele **sempre terá um valor**, só que às vezes o valor pode ser `None` (ou `null` em termos de JSON).

        if (apply) {
            return deletionOps.deleteByQuery(index, QueryBuilders.wildcardQuery(FieldNames.TEXT, "*" + normalized + "*"));
        }
        return new SuggestDeleteResponse(null, 0);
    }

    /**
     * Deletes a bad word.
     *
     * @param badWord The bad word to delete
     */
    public void deleteBadWord(final String badWord) {

   * wish to override {@link #lower} to forward to this implementation.
   */
  protected @Nullable E standardLower(@ParametricNullness E e) {
    return Iterators.getNext(headSet(e, false).descendingIterator(), null);
  }

  @Override
  public @Nullable E floor(@ParametricNullness E e) {
    return delegate().floor(e);
  }

  /**

    String NATIVE_LANMAN = Config.getProperty("jcifs.smb1.smb.client.nativeLanMan", "jCIFS");
    /** Virtual circuit number */
    int VC_NUMBER = 1;
    /** Null transport instance */
    SmbTransport NULL_TRANSPORT = new SmbTransport(null, 0, null, 0);

    }

    @Test
    public void test_nullSafeLogout() {
        SpnegoAuthenticator authenticator = new SpnegoAuthenticator();

        // SPNEGO logout should return null (relies on Kerberos infrastructure)
        String logoutUrl = authenticator.logout(null);
        assertNull(logoutUrl);
    }

    @Test
    public void test_nullSafeGetResponse() {
        SpnegoAuthenticator authenticator = new SpnegoAuthenticator();

    private String primaryDomain = "";

    private boolean isLoggedInAsGuest;
    private byte[] blob = null;

    /**
     * Constructs a session setup AndX response.
     *
     * @param config the configuration to use
     * @param andx the next command in the AndX chain, or null
     */
    public SmbComSessionSetupAndXResponse(final Configuration config, final ServerMessageBlock andx) {

    private final Collection<Artifact> artifacts = new ArrayList<>();

    LocalSnapshotMetadata(Artifact artifact, Date timestamp) {
        super(createMetadata(artifact), (Path) null, timestamp);
    }

    LocalSnapshotMetadata(Metadata metadata, Path path, Date timestamp) {
        super(metadata, path, timestamp);
    }

    private static Metadata createMetadata(Artifact artifact) {

    if (bufferSize > k) {
      Arrays.fill(buffer, k, buffer.length, null);
      bufferSize = k;
      threshold = buffer[k - 1];
    }
    // Up to bufferSize, all elements of buffer are real Ts (not null unless T includes null)
    T[] topK = Arrays.copyOf(castBuffer, bufferSize);
    // we have to support null elements, so no ImmutableList for us
    return unmodifiableList(asList(topK));
  }

	f.err = ErrFieldTooLong
}

func (p *parser) parseOctal(b []byte) int64 {
	// Because unused fields are filled with NULs, we need
	// to skip leading NULs. Fields may also be padded with
	// spaces or NULs.
	// So we remove leading and trailing NULs and spaces to
	// be sure.
	b = bytes.Trim(b, " \x00")

	if len(b) == 0 {
		return 0
	}