// StatelessHandler is handlers for one to many requests,
	// where responses may be dropped.
	// Stateless requests provide no incoming stream and there is no flow control
	// on outgoing messages.
	StatelessHandler struct {
		Handle StatelessHandlerFn
		// OutCapacity is the output capacity on the caller.
		// If <= 0 capacity will be 1.
		OutCapacity int

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

// isDirEmpty - returns true if there is no error and no object and prefix inside this directory
func isDirEmpty(dirname string, _ bool) bool {
	entries, err := readDirN(dirname, 1)
	if err != nil {
		return false
	}
	return len(entries) == 0

            assertTrue(e.getMessage().contains("No response body"));
        }
    }

    @Test
    public void test_transform_noResponseBody() {
        final ResponseData responseData = new ResponseData();
        responseData.setUrl("http://example.com/test.pdf");
        // hasResponseBody() returns false when no body is set

        try {
            transformer.transform(responseData);

    }

    @Test
    void testChannelSelection() {
        try {
            channelManager.selectChannel(mockMessage);
            fail("Should throw exception when no channels available");
        } catch (Exception e) {
            // Expected - no channels available
            assertTrue(e instanceof ChannelLoadBalancer.NoAvailableChannelException);
        }
    }

    @Test

As in this case the function is not async, the right return type would be `Iterable[Item]`:

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[28:31] hl[29] *}

### No Return Type { #no-return-type }

You can also omit the return type. FastAPI will use the [`jsonable_encoder`](./encoder.md) to convert the data and send it.

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[34:37] hl[35] *}

    if (copy.isEmpty()) {
      // Having no services causes the manager to behave strangely. Notably, listeners are never
      // fired. To avoid this we substitute a placeholder service.
      logger
          .get()
          .log(
              Level.WARNING,
              "ServiceManager configured with no services.  Is your application configured"
                  + " properly?",

        if (context == null) {
            if (enforceIntegrity) {
                throw new CIFSException("No preauth integrity context found for session: " + sessionId);
            }
            log.warn("No preauth integrity context for session {}, skipping update", sessionId);
            return;
        }

        if (!context.isValid()) {

       *
       * TODO(b/112550045): Allocating a single, cheaper listener is (I think) only an optimization.
       * If we make some other optimizations, this one will no longer be necessary. The optimization
       * could actually hurt in some cases, as it forces us to keep all inputs in memory until the
       * final input completes.
       */
      @RetainedLocalRef

//msgp:tuple dataUsageEntryV2
type dataUsageEntryV2 struct {
	// These fields do no include any children.
	Size     int64
	Objects  uint64
	ObjSizes sizeHistogram
	Children dataUsageHashMap
}

//msgp:tuple dataUsageEntryV3
type dataUsageEntryV3 struct {
	// These fields do no include any children.
	Size     int64
	Objects  uint64
	ObjSizes sizeHistogram
	Children dataUsageHashMap

   * exceptions in methods like Futures.getUnchecked and LoadingCache.get.)
   */

  /**
   * Creates a new instance with {@code null} as its detail message and no cause.
   *
   * @deprecated Prefer {@linkplain UncheckedExecutionException(Throwable)} a constructor that
   *     accepts a cause: Users of this class typically expect for instances to have a non-null