/**
     * Retrieve a <code>String</code>. If the key cannot be found,
     * the provided <code>def</code> default parameter will be returned.
     *
     * @param key the property key to look up
     * @param def the default value to return if the property is not found
     * @return the property value, or the default value if not found
     */

    public static String getProperty(final String key, final String def) {

            throw new IORuntimeException(ex);
        }
    }

    /**
     * Converts a byte array to an object using the default security filter.
     * <p>
     * This method applies a default ObjectInputFilter to prevent deserialization attacks.
     * Only classes matching the default allowed patterns can be deserialized.
     * </p>
     *
     * @param bytes the byte array (must not be {@literal null})

Like `item.model_dump(exclude_unset=True)`.

That would generate a `dict` with only the data that was set when creating the `item` model, excluding default values.

Then you can use this to generate a `dict` with only the data that was set (sent in the request), omitting default values:

{* ../../docs_src/body_updates/tutorial002_py310.py hl[32] *}

### Using Pydantic's `update` parameter { #using-pydantics-update-parameter }

    /**
     * Default constructor.
     */
    protected NtlmAuthenticator() {
        // Protected constructor for abstract class
    }

    private static NtlmAuthenticator auth;

    private String url;
    private SmbAuthException sae;

    private void reset() {
        url = null;
        sae = null;
    }

    /**

 * triggers all preceding phases, ensuring that each step of the build process is
 * completed in the correct order. The three main lifecycles in Maven are
 * {@link #DEFAULT default}, {@link #CLEAN clean}, and {@link #SITE site}, with the
 * {@code default} lifecycle being the most commonly used for project builds.
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface Lifecycle extends ExtensibleEnum {

    @DisplayName("String ctor: preserves message; default unsuccessful status")
    void messageConstructor_handlesNullAndEmpty(String msg) {
        // Act
        SmbAuthException ex = new SmbAuthException(msg);

        // Assert
        assertEquals(msg, ex.getMessage());
        assertEquals(NtStatus.NT_STATUS_UNSUCCESSFUL, ex.getNtStatus(), "default status must be unsuccessful");
        assertNull(ex.getCause());

    }

    /**
     * Share information level 0 structure containing basic share information.
     */
    public static class ShareInfo0 extends NdrObject {

        /**
         * Default constructor for ShareInfo0.
         */
        public ShareInfo0() {
        }

        /**
         * The network name of the share.
         */
        public String netname;

        @Override

from fastapi import FastAPI
from fastapi.testclient import TestClient
from inline_snapshot import snapshot

app = FastAPI(
    servers=[
        {"url": "/", "description": "Default, relative server"},
        {
            "url": "http://staging.localhost.tiangolo.com:8000",
            "description": "Staging but actually localhost still",
        },
        {"url": "https://prod.example.com"},
    ]
)


@app.get("/foo")

# classificationDefinitionMap: (NotRequired - Default map:{})
#
# The definition of classification.
#
# Specification:
# map: {
#     [classification-name] = list:{
#         ; map:{
#             ; topComment=[comment]; codeType=[String(default) or Number or Boolean]}
#             ; undefinedHandlingType=[EXCEPTION or LOGGING(default) or ALLOWED]
#             ; isUseDocumentOnly=[true or false(default)]

 */
public interface ModelProblemCollector {

    ProblemCollector<ModelProblem> getProblemCollector();

    default boolean hasErrors() {
        return getProblemCollector().hasErrorProblems();
    }

    default boolean hasFatalErrors() {
        return getProblemCollector().hasFatalProblems();
    }

    default void add(BuilderProblem.Severity severity, ModelProblem.Version version, String message) {