# Header Parameter Models { #header-parameter-models }

If you have a group of related **header parameters**, you can create a **Pydantic model** to declare them.

This would allow you to **re-use the model** in **multiple places** and also to declare validations and metadata for all the parameters at once. 😎

/// note

This is supported since FastAPI version `0.115.0`. 🤓

///

        int outerTagNo = (outerTagNoOverride != null) ? outerTagNoOverride : 0;

        ByteArrayOutputStream collector = new ByteArrayOutputStream();
        ASN1OutputStream der = ASN1OutputStream.create(collector, ASN1Encoding.DER);
        try {
            DERTaggedObject applicationWrapper = new DERTaggedObject(false, BERTags.APPLICATION, outerTagNo, new DERSequence(ev));
            der.writeObject(applicationWrapper);

                    }
                });
            }
            return result;
        } catch (final Exception e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();
            throw new IllegalBehaviorStateException(msg, e);
        }
    }

    /** Virtual address of the memory region */
    protected final long address;
    /** Flag indicating if the memory region is still valid */
    protected volatile boolean valid;

    /**
     * Create new RDMA memory region
     *
     * @param buffer memory buffer to register
     * @param access access permissions
     */
    public RdmaMemoryRegion(ByteBuffer buffer, EnumSet<RdmaAccess> access) {

                mode = JapaneseTokenizer.Mode.EXTENDED;
            }
        }
        return mode;
    }

    @Override
    public Tokenizer create() {
        JapaneseTokenizer t = new JapaneseTokenizer(userDictionary, discartPunctuation, mode);
        int nBestCost = this.nBestCost;
        if (nBestExamples != null) {

        LdapConfigurationException exception = new LdapConfigurationException(message);

        // Test that serialVersionUID is accessible (inherited from parent)
        assertNotNull(exception);

        // Create a new instance to verify it can be created multiple times
        LdapConfigurationException exception2 = new LdapConfigurationException(message);
        assertEquals(exception.getMessage(), exception2.getMessage());
    }

    NbtAddress[] addressArray;

    /*
     * It is a little awkward but prudent to pass the quering address
     * so that it may be included in the list of results. IOW we do
     * not want to create a new NbtAddress object for this particular
     * address from which the query is constructed, we want to populate
     * the data of the existing address that should be one of several
     * returned by the node status.
     */

 * Tests for the {@link PacUnicodeString} class.
 */
class PacUnicodeStringTest {

    /**
     * Tests the constructor and getter methods.
     */
    @Test
    void testConstructorAndGetters() {
        // Create a new instance with some test data
        short length = 10;
        short maxLength = 20;
        int pointer = 100;
        PacUnicodeString pacString = new PacUnicodeString(length, maxLength, pointer);

 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.internal.smb2.create;

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

          .put(ImmutableSetMultimap.class, ImmutableSetMultimap.of())
          .put(
              SortedSetMultimap.class,
              Multimaps.unmodifiableSortedSetMultimap(TreeMultimap.create()))
          .put(Multiset.class, ImmutableMultiset.of())
          .put(ImmutableMultiset.class, ImmutableMultiset.of())
          .put(SortedMultiset.class, ImmutableSortedMultiset.of())