SettableFuture<Integer> future = SettableFuture.create();
    assertTrue(future.set(42));
    // Later attempts to set the future should return false.
    assertFalse(future.set(23));
    assertFalse(future.setException(new Exception("bar")));
    assertFalse(future.setFuture(SettableFuture.create()));
    // Check that the future has been set properly.
    assertTrue(future.isDone());

        assertEquals("5", KerberosConstants.KERBEROS_VERSION, "KERBEROS_VERSION should have the correct value.");
        assertEquals(23, KerberosConstants.RC4_ENC_TYPE, "RC4_ENC_TYPE should have the correct value.");
        assertEquals("HmacMD5", KerberosConstants.HMAC_ALGORITHM, "HMAC_ALGORITHM should have the correct value.");
    }

        .query("i:\u0001@/\\?#%j")
        .fragment("k:\u0001@/\\?#%l")
        .build()
    assertThat(url.toString())
      .isEqualTo(
        "http://a%3A%01%40%2F%5C%3F%23%25b:c%3A%01%40%2F%5C%3F%23%25d@ef:8080/" +
          "g:%01@%2F%5C%3F%23%25h?i:%01@/\\?%23%25j#k:%01@/\\?#%25l",
      )
    assertThat(url.scheme).isEqualTo("http")
    assertThat(url.username).isEqualTo("a:\u0001@/\\?#%b")

      "description": "JDK 11 requirement"
    },
    {
      "matchPackageNames": [
        "androidx.activity:activity-ktx"
      ],
      "allowedVersions": "<=1.11.0",
      "description": "Android minSdk 23 requirement"
    }
  ]

    SettableFuture<Integer> future = SettableFuture.create();
    assertTrue(future.set(42));
    // Later attempts to set the future should return false.
    assertFalse(future.set(23));
    assertFalse(future.setException(new Exception("bar")));
    assertFalse(future.setFuture(SettableFuture.create()));
    // Check that the future has been set properly.
    assertTrue(future.isDone());

	_ = x[storageMetricDeleteVersion-18]
	_ = x[storageMetricWriteMetadata-19]
	_ = x[storageMetricUpdateMetadata-20]
	_ = x[storageMetricReadVersion-21]
	_ = x[storageMetricReadXL-22]
	_ = x[storageMetricReadAll-23]
	_ = x[storageMetricStatInfoFile-24]
	_ = x[storageMetricReadMultiple-25]
	_ = x[storageMetricDeleteAbandonedParts-26]
	_ = x[storageMetricDiskInfo-27]
	_ = x[storageMetricDeleteBulk-28]
	_ = x[storageMetricRenamePart-29]

    @ParameterizedTest
    @CsvSource(
        value = [
            "master,    0",
            "release,   1",
            "release6x, 2",
            "release7x, 3",
            "release27x,23",
        ],
    )
    fun branchesWithVcsTriggerEnabled(
        branchName: String,
        expectedNightlyPromotionTriggerHour: Int?,
    ) {
        val vsb = VersionedSettingsBranch(branchName)

Then you can use this new class in `response_class=PNGStreamingResponse` in your *path operation function*:

{* ../../docs_src/stream_data/tutorial002_py310.py ln[23:27] hl[23] *}

### Simulate a File { #simulate-a-file }

In this example, we are simulating a file with `io.BytesIO`, which is a file-like object that lives only in memory, but lets us use the same interface.

    // We need to handle long logger names before they hit Log.
    // java.lang.IllegalArgumentException: Log tag "okhttp3.mockwebserver.MockWebServer" exceeds limit of 23 characters
    return knownLoggers[loggerName] ?: loggerName.take(23)
  }

  fun enable() {
    try {
      for ((logger, tag) in knownLoggers) {
        enableLogging(logger, tag)
      }
    } catch (re: RuntimeException) {

@RunWith(AndroidJUnit4.class)
public class LetsEncryptTest {
  @Test public void getFailsWithoutAdditionalCert() throws IOException {
    OkHttpClient client = new OkHttpClient();

    boolean androidMorEarlier = Build.VERSION.SDK_INT <= 23;
    try {
      sendRequest(client, "https://valid-isrgrootx1.letsencrypt.org/robots.txt");
      if (androidMorEarlier) {
        fail();
      }
    } catch (SSLHandshakeException sslhe) {