* `tags: List[str] = []` has a default of an empty list: `[]`.

but you might want to omit them from the result if they were not actually stored.

For example, if you have models with many optional attributes in a NoSQL database, but you don't want to send very long JSON responses full of default values.

### Use the `response_model_exclude_unset` parameter { #use-the-response-model-exclude-unset-parameter }

			Optional:    true,
			Type:        "string",
		},
		config.HelpKV{
			Key:         UserDNAttributes,
			Description: `"," separated list of user DN attributes e.g. "uid,cn,mail,sshPublicKey"` + defaultHelpPostfix(UserDNAttributes),
			Optional:    true,
			Type:        "list",
		},
		config.HelpKV{
			Key:         GroupSearchFilter,

     */
    @Nonnull
    Optional<Boolean> infer();

    /**
     * Should fix Maven 4 compatibility issues in POMs.
     * This includes fixing unsupported combine attributes, duplicate dependencies,
     * unsupported expressions, and other Maven 4 validation issues.
     *
     * @return an {@link Optional} containing the boolean value {@code true} if specified, or empty
     */
    @Nonnull

        } else {
            visitor.onStartHtmlElement(elementName);
        }

        // attributes
        scanner.skip(WHITESPACE_WITH_EOL);
        while (!scanner.isEmpty() && scanner.lookingAt(ELEMENT_ATTRIBUTE)) {
            // attribute name
            scanner.mark();
            scanner.find(END_ATTRIBUTE_NAME);
            String attrName = scanner.region();

      throws IOException {
    Manifest manifest = new Manifest();
    // Without version, the manifest is silently ignored. Ugh!
    manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
    manifest.getMainAttributes().put(Attributes.Name.CLASS_PATH, jarFile.getName());

    Closer closer = Closer.create();
    try {
      FileOutputStream fileOut = closer.register(new FileOutputStream(jarFile));

                }

                if (parameterConfiguration != null) {
                    Map<String, String> attributes = new HashMap<>(parameterConfiguration.attributes());

                    String attributeForImplementation = parameterConfiguration.attribute("implementation");
                    String parameterForImplementation = parameter.getImplementation();

// we assume the value returned by the LDAP server is canonical. Additionally,
// the attribute type names in the DN are lower-cased.
//
// Return values:
//
// If the DN is found, the normalized (string) value and any requested
// attributes are returned and error is nil.
//
// If the DN is not found, a nil result and error are returned.
//

    boolean equals(Object obj);

    /**
     * Returns a string representation of this request, used for debugging and logging purposes.
     * The format should include the request type and any significant attributes that define the
     * request's state.
     *
     * @return a string representation of this request, never {@code null}
     */
    @Override
    @Nonnull
    String toString();

			claims[ldapUser] = lookupResult.NormDN
			claims[ldapActualUser] = lookupResult.ActualDN
			claims[ldapUserN] = ctx.Sess.LoginUser()

			// Add LDAP attributes that were looked up into the claims.
			for attribKey, attribValue := range lookupResult.Attributes {
				claims[ldapAttribPrefix+attribKey] = attribValue
			}

			cred, err := auth.GetNewCredentialsWithMetadata(claims, globalActiveCred.SecretKey)
			if err != nil {

<artifactId>project-artifact</artifactId>
<version>0.0.0.0</version>
<packaging>type</packaging>
    ]]></configuration>
    <description> This is the Artifact instance created from the essential project
      attributes: groupId, artifactId, version, and packaging (with a default packaging of
      'jar').
    </description>
  </expression>
  <expression>
    <syntax>project.parent</syntax>
    <configuration>
      <![CDATA[