The way to describe this in OpenAPI, is to mark that field as **required**, because it will always be there.

Because of that, the JSON Schema for a model can be different depending on if it's used for **input or output**:

 * even when the result of the comparison is already known from previous {@code .compare} calls.
 * That can be expensive.
 *
 * @author Mark Davis
 * @author Kevin Bourrillion
 * @since 2.0
 */
@GwtCompatible
public abstract class ComparisonChain {
  private ComparisonChain() {}

        totalAllocated.incrementAndGet();

        log.trace("Registered resource: {} ({})", resourceId, resource.getClass().getSimpleName());

        return resourceId;
    }

    /**
     * Mark a resource as closed
     *
     * @param resourceId the resource ID
     */
    public void markClosed(String resourceId) {
        ResourceHolder holder = activeResources.get(resourceId);

            <type>RepositoryPolicy</type>
          </association>
        </field>
      </fields>
      <!-- prevent modello generation of an incorrect equals method. Could be avoided by using <identity/> tags to mark ID as the only identity field -->
      <codeSegments>
        <codeSegment>
          <version>1.0.0</version>
          <code><![CDATA[
            public boolean equals( Object obj )
            {

	found := make(map[string]struct{}, len(d.Cache))

	// Mark all children recursively
	var mark func(entry dataUsageEntry)
	mark = func(entry dataUsageEntry) {
		for k := range entry.Children {
			found[k] = struct{}{}
			if ch, ok := d.Cache[k]; ok {
				mark(ch)
			}
		}
	}
	found[top] = struct{}{}
	mark(*topE)

	// Delete all entries not found.
	for k := range d.Cache {

  - media: '(prefers-color-scheme: light)'
    scheme: default
    primary: teal
    accent: amber
    toggle:
      icon: material/lightbulb
      name: Switch to dark mode
  - media: '(prefers-color-scheme: dark)'
    scheme: slate
    primary: teal
    accent: amber
    toggle:
      icon: material/lightbulb-outline
      name: Switch to system preference
  features:
  - content.code.annotate

        return false;
    }

    // ===================================================================================
    //                                                                     Birthplace Mark
    //                                                                     ===============
    @Override
    public void markAsSelect() {
        __createdBySelect = true;
    }

    @Override

        return false;
    }

    // ===================================================================================
    //                                                                     Birthplace Mark
    //                                                                     ===============
    @Override
    public void markAsSelect() {
        __createdBySelect = true;
    }

    @Override

        '500':
          $ref: '#/components/responses/InternalServerError'

  /documents/{docId}/favorite:
    post:
      tags:
        - favorite
      summary: Set a favorite mark
      description: Set a favorite mark to the document
      operationId: setFavorite
      parameters:
        - name: docId
          in: path
          description: Document ID to be favorited
          required: true

                    e);
          }
        }
      } finally {
        if (stillRunning) {
          // An Error is bubbling up. We should mark ourselves as no longer running. That way, if
          // anyone tries to keep using us, we won't be corrupted.
          synchronized (PerListenerQueue.this) {
            isThreadScheduled = false;
          }
        }