"""
Regression test: Ensure app-level responses with Union models and content/examples
don't accumulate duplicate $ref entries in anyOf arrays.
See https://github.com/fastapi/fastapi/pull/14463
"""

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


class ModelA(BaseModel):
    a: str


class ModelB(BaseModel):
    b: str

import org.gradle.api.file.ConfigurableFileCollection;
import org.gradle.api.file.DirectoryProperty;
import org.gradle.api.file.RegularFileProperty;

/**
 * The DSL reference for this documentation.  These are higher-level than Javadoc.
 */
public abstract class DslReference {
    /**
     * The root of the DSL documentation.  This is the source of the DSL XML currently.
     */
    public abstract DirectoryProperty getRoot();

Instead, declare a return type or response model. Pydantic will handle the data serialization on the Rust side.

## Including Routers

When declaring routers, prefer to add router level parameters like prefix, tags, etc. to the router itself, instead of in `include_router()`.

Do this:

```python
from fastapi import APIRouter, FastAPI

app = FastAPI()

 * This form extends CreateForm to include fields necessary for updating existing role entries,
 * including tracking information for optimistic locking and audit trails.
 * Roles define permissions and access levels for users within the system.
 *
 */
public class EditForm extends CreateForm {

    /**
     * Creates a new EditForm instance.
     */
    public EditForm() {
        super();
    }

    /**

			tot += n
			if err == io.EOF {
				return
			}
			if err != nil {
				t.Error(err)
				return
			}
		}
	}()

	clientConn, err := net.DialUnix("unixpacket", nil, addr)
	if err != nil {
		// Leaves the server goroutine hanging. Oh well.
		t.Fatal(err)
	}

	defer wg.Wait()
	defer clientConn.Close()

	const data = "data"
	r := bufio.NewReader(strings.NewReader(data))
	n, err := io.Copy(clientConn, r)

        line.append(isWindows ? convertWindowsPath(getProject(), cacheDir) : convertLinuxPath(getProject(), cacheDir));
        line.append(" -S");
        line.append(" --parallel");
        line.append(" -D'org.gradle.logging.level'=" + getProject().getGradle().getStartParameter().getLogLevel());
        if (testClass != null) {
            line.append(" --tests=");
            line.append(testClass);
        }

    /**
     * Gets the problems that were encountered during the settings building. Note that only problems of severity
     * {@link SettingsProblem.Severity#WARNING} and below are reported here. Problems with a higher severity level cause
     * the settings builder to fail with a {@link SettingsBuildingException}.
     *
     * @return The problems that were encountered during the settings building, can be empty but never {@code null}.
     */

        }
    }

    /**
     * Causes the currently executing thread to sleep (temporarily cease execution) for the specified number of milliseconds.
     * Any {@link InterruptedException} is caught and logged at debug level.
     *
     * @param millis
     *            the length of time to sleep in milliseconds
     */
    public static void sleepQuietly(final long millis) {
        if (millis < 1L) {
            return;
        }

        dataDisplacement = readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        setupCount = buffer[bufferIndex] & 0xFF;
        bufferIndex += 2;
        if ((setupCount != 0) && (LogStream.level >= 3)) {
            log.println("setupCount is not zero: " + setupCount);
        }

        return bufferIndex - start;
    }

   * @throws IllegalStateException if a concurrency level was already set
   */
  @CanIgnoreReturnValue
  public MapMaker concurrencyLevel(int concurrencyLevel) {
    checkState(
        this.concurrencyLevel == UNSET_INT,
        "concurrency level was already set to %s",
        this.concurrencyLevel);
    checkArgument(concurrencyLevel > 0);