{* ../../docs_src/request_form_models/tutorial001_an_py39.py hl[9:11,15] *}

**FastAPI** will **extract** the data for **each field** from the **form data** in the request and give you the Pydantic model you defined.

## Check the Docs { #check-the-docs }

You can verify it in the docs UI at `/docs`:

<div class="screenshot">
<img src="/img/tutorial/request-form-models/image01.png">
</div>

    void testAES256CipherConstants() {
        // Verify AES-256 constants are defined
        assertEquals(0x0003, Smb2EncryptionContext.CIPHER_AES_256_CCM, "AES-256-CCM constant should be defined");
        assertEquals(0x0004, Smb2EncryptionContext.CIPHER_AES_256_GCM, "AES-256-GCM constant should be defined");

        // Test creating context with AES-256 cipher IDs

        // Set up deferred buffer chain to avoid NPE
        mockDeferredNdrBuffer.deferred = mockDeferredNdrBuffer; // Self-reference to avoid NPE
        lenient().when(mockNdrBuffer.derive(anyInt())).thenReturn(mockDeferredNdrBuffer);
        lenient().when(mockDeferredNdrBuffer.derive(anyInt())).thenReturn(mockDeferredNdrBuffer);

        // Set up lenient stubs for common operations to avoid unnecessary stubbing exceptions

	}

	keyID, b64Key := v[0], v[1]
	key, err := base64.StdEncoding.DecodeString(b64Key)
	if err != nil {
		return nil, err
	}
	return NewBuiltin(keyID, key)
}

// NewBuiltin returns a single-key KMS that derives new DEKs from the
// given key.
func NewBuiltin(keyID string, key []byte) (*KMS, error) {
	if len(key) != 32 {
		return nil, errors.New("kms: invalid key length " + strconv.Itoa(len(key)))
	}
	return &KMS{

**FastAPI** will **extract** the data for **each field** from the **cookies** received in the request and give you the Pydantic model you defined.

## Check the Docs { #check-the-docs }

You can see the defined cookies in the docs UI at `/docs`:

<div class="screenshot">
<img src="/img/tutorial/cookie-param-models/image01.png">
</div>

/// info

    * And validators allow complex data schemas to be clearly and easily defined, checked and documented as JSON Schema.
    * You can have deeply **nested JSON** objects and have them all validated and annotated.
* **Extensible**:
    * Pydantic allows custom data types to be defined or you can extend validation with methods on a model decorated with the validator decorator.

func (d *DecryptBlocksReader) buildDecrypter(partID int) error {
	var partIDbin [4]byte
	binary.LittleEndian.PutUint32(partIDbin[:], uint32(partID)) // marshal part ID

	mac := hmac.New(sha256.New, d.objectEncryptionKey) // derive part encryption key from part ID and object key
	mac.Write(partIDbin[:])
	partEncryptionKey := mac.Sum(nil)

	// Limit the reader, so the decryptor doesn't receive bytes
	// from the next part (different DARE stream)

    /**
     * Creates a new SAM alias handle.
     *
     * @param handle the DCE/RPC handle for communication
     * @param domainHandle the domain handle containing this alias
     * @param access the desired access rights
     * @param rid the relative identifier of the alias
     * @throws IOException if an I/O error occurs during handle creation
     */

 * is optional or mandatory), and possible exclusions for transitive dependencies.
 * The {@linkplain #getVersionConstraint() version} and the {@linkplain #getOptional() obligation}
 * may not be defined precisely.
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface DependencyCoordinates extends ArtifactCoordinates {
    /**
     * {@return the type of the dependency}

import static org.junit.jupiter.api.Assertions.assertNotNull;

import org.junit.jupiter.api.Test;

/**
 * Tests for the {@link ResolverType} enum.
 * This class ensures that the enum constants are defined as expected.
 */
class ResolverTypeTest {

    /**
     * Tests that all expected enum constants exist.
     */
    @Test
    void testEnumConstants() {