class Item(BaseModel):
    name: str
    price: float


class ResponseMessage(BaseModel):
    message: str


class User(BaseModel):
    username: str
    email: str


@app.post("/items/", response_model=ResponseMessage, tags=["items"])
async def create_item(item: Item):
    return {"message": "Item received"}


@app.get("/items/", response_model=list[Item], tags=["items"])
async def get_items():

@Experimental
public class PrompterException extends MavenException {

    public PrompterException(String message) {
        super(message);
    }

    /**
     * @param message the message to give
     * @param e the {@link Exception}
     */
    public PrompterException(String message, Exception e) {
        super(message, e);
    }

     *
     * @param message
     */
    public MojoFailureException(String message) {
        super(message);
    }

    /**
     * Construct a new <code>MojoFailureException</code> exception wrapping an underlying <code>Throwable</code>
     * and providing a <code>message</code>.
     *
     * @param message
     * @param cause
     * @since 2.0.9
     */

   * the call to {@code contains(null)} is permitted to throw a {@code NullPointerException}.
   *
   * @param message message to use upon assertion failure
   */
  protected void expectNullKeyMissingWhenNullKeysUnsupported(String message) {
    try {
      assertFalse(message, getMap().containsKey(null));
    } catch (NullPointerException tolerated) {
      // Tolerated
    }
  }

  /**

     *
     * @param message the detail message explaining the reason for the exception
     * @param throwables the array of throwables that caused this exception
     */
    public MultipleCrawlingAccessException(final String message, final Throwable[] throwables) {
        super(message);
        if (throwables == null) {

        this.exception = exception;
        return this;
    }

    public String getMessage() {
        return message;
    }

    public ModelProblemCollectorRequest setMessage(String message) {
        this.message = message;
        return this;
    }

    public InputLocation getLocation() {
        return location;
    }

    static final long serialVersionUID = 1;

    public ExpressionDocumentationException(String message, Throwable cause) {
        super(message, cause);
    }

    public ExpressionDocumentationException(String message) {
        super(message);
    }

 *
 */
@Deprecated
public class RepositoryMetadataDeploymentException extends Throwable {
    public RepositoryMetadataDeploymentException(String message) {
        super(message);
    }

    public RepositoryMetadataDeploymentException(String message, Exception e) {
        super(message, e);
    }

     *
     * @return the protocol type
     */
    ProtocolType protocolType();

    /**
     * The validation error message.
     *
     * @return the error message
     */
    String message() default "{org.lastaflute.validator.constraints.UriType.message}";

    /**
     * The validation groups.
     *
     * @return the validation groups
     */
    Class<?>[] groups() default {};

    /**
     * Creates a new exception with specified details.
     *
     * @param message The message text, may be {@code null}.
     * @param collisions The POM files of the projects that collided, indexed by their g:a:v, may be {@code null}.
     */
    public DuplicateProjectException(String message, Map<String, List<File>> collisions) {
        super(message, (File) null);