### Fixing DCO failures/Signing Off Commits After Submitting a Pull Request

Örneğin, `media_type` özniteliğini kullanarak `Content-Type` header'ını `image/png` olarak ayarlayan bir `PNGStreamingResponse` oluşturabilirsiniz:

{* ../../docs_src/stream_data/tutorial002_py310.py ln[6,19:20] hl[20] *}

     *
     * It helps to consider the real number signif = absX * 2^(SIGNIFICAND_BITS - exponent).
     */
    int shift = exponent - SIGNIFICAND_BITS - 1;
    long twiceSignifFloor = absX.shiftRight(shift).longValue();
    long signifFloor = twiceSignifFloor >> 1;
    signifFloor &= SIGNIFICAND_MASK; // remove the implied bit

    /*
     * We round up if either the fractional part of signif is strictly greater than 0.5 (which is

        // Then
        assertNotNull(signingKey, "Signing key should not be null");
        assertEquals(16, signingKey.length, "Signing key should be 16 bytes");
        assertFalse(Arrays.equals(sessionKey, signingKey), "Signing key should be different from session key");
    }

    @Test
    @DisplayName("Should derive signing key for SMB 3.1.1 dialect")
    void testDeriveSigningKey_SMB311() {
        // Given

**SQLModel**’de, `table=True` olan herhangi bir model sınıfı bir **table model**’dir.

`table=True` olmayan her model sınıfı ise bir **data model**’dir; bunlar aslında sadece Pydantic modelleridir (bazı küçük ek özelliklerle). 🤓

SQLModel ile **inheritance** kullanarak her durumda tüm alanları tekrar tekrar yazmaktan **kaçınabiliriz**.

#### `HeroBase` - temel sınıf { #herobase-the-base-class }

import jcifs.internal.SMBSigningDigest;
import jcifs.internal.util.SMBUtil;
import jcifs.util.Crypto;

/**
 * SMB2/SMB3 message signing digest implementation.
 *
 * This class handles cryptographic signing of SMB2/SMB3 messages to ensure
 * message integrity and authenticity. It supports different signing algorithms
 * used in various SMB2/SMB3 dialect versions.
 *
 * @author mbechler
 */

    private boolean bypass = false;
    private int updates;
    private int signSequence;

    /**
     * Constructs a new signing digest with the specified MAC signing key.
     *
     * @param macSigningKey the MAC signing key for message authentication
     * @param bypass whether to bypass MAC signing
     * @throws SmbException if MD5 algorithm is not available
     */

 * with the server, including security requirements like message signing.
 *
 * @author mbechler
 */
public interface SmbNegotiationRequest {

    /**
     * Checks whether SMB message signing is enforced by the client.
     *
     * @return whether SMB signing is enforced
     */
    boolean isSigningEnforced();

    }

    /**
     * Constructs a signing digest with bypass option and initial sequence number
     *
     * @param macSigningKey
     *            The MAC signing key used for generating signatures
     * @param bypass
     *            Whether to bypass signature verification
     * @param initialSequence
     *            The initial sequence number for signing
     */

    @DisplayName("Test isSigningEnforced returns true when signing is enforced")
    void testIsSigningEnforcedReturnsTrue() {
        // Given
        when(negotiationRequest.isSigningEnforced()).thenReturn(true);

        // When
        boolean result = negotiationRequest.isSigningEnforced();

        // Then
        assertTrue(result, "isSigningEnforced should return true when signing is enforced");