- The user can now use these credentials to make requests to the MinIO server.

The administrator will associate IAM access policies with each group and if required with the user too. The MinIO server then evaluates applicable policies on a user (these are the policies associated with the groups along with the policy on the user if any) to check if the request should be allowed or denied.

    try {
      hashFunction.hashBytes(new byte[128], -1, 128);
      Assert.fail();
    } catch (IndexOutOfBoundsException expected) {
    }
    try {
      hashFunction.hashBytes(new byte[128], 64, 256 /* too long len */);
      Assert.fail();
    } catch (IndexOutOfBoundsException expected) {
    }
    try {
      hashFunction.hashBytes(new byte[64], 0, -1);
      Assert.fail();

# Concurrency ve async / await

*path operasyon fonksiyonu* için `async def `sözdizimi,  asenkron kod, eşzamanlılık ve paralellik hakkında bazı ayrıntılar.

## Aceleniz mi var?

<abbr title="too long; didn't read"><strong>TL;DR:</strong></abbr>

Eğer `await` ile çağrılması gerektiğini belirten üçüncü taraf kütüphaneleri kullanıyorsanız, örneğin:

```Python
results = await some_library()
```

   *   flooding. Callers can confirm this by null-checking delegateOrNull().
   *
   * In an ideal world, we would document why we know those things are true every time we call these
   * methods. But that is a bit too painful....
   */

  private Object requireTable() {
    return requireNonNull(table);
  }

  private int[] requireEntries() {
    return requireNonNull(entries);
  }

    assertFailsWith<ProtocolException> {
      CertificateAdapters.subjectPublicKeyInfo.fromDer(bytes)
    }.also { expected ->
      assertThat(expected.message).isEqualTo("enclosed object too large")
    }
  }

  /** Object identifiers are nominally self-delimiting. Outrun the limit with one. */
  @Test fun `variable length long outruns limit`() {
    val bytes = "060229ffffff7f".decodeHex()

        ),
      )
    }
    assertFailsWith<ProtocolException> {
      getResponse(newRequest("/0"))
    }.also { expected ->
      assertThat(expected.message).isEqualTo(
        "Too many follow-up requests: 21",
      )
    }
  }

  @Test
  fun httpsWithCustomTrustManager() {
    val hostnameVerifier = RecordingHostnameVerifier()

                ChecksumObserver observer = checksums.get(extension);
                sums.put(extension, observer.getActualChecksum());
            }

            // We do this in here so we can checksum the artifact metadata too, otherwise it could be metadata itself
            for (String extension : checksums.keySet()) {
                // TODO shouldn't need a file intermediary - improve wagon to take a stream

```

</div>

Then go to the `/docs` UI, you will see that **FastAPI** is using these **models** to **document** the API, and it will use them to **serialize** and **validate** the data too.

<div class="screenshot">
<img src="/img/tutorial/sql-databases/image01.png">
</div>

## Update the App with Multiple Models { #update-the-app-with-multiple-models }

      this.expectedCompletionWaitMillis = expectedCompletionWaitMillis;
      stopwatch = Stopwatch.createStarted();
    }

    /**
     * Asserts that the expected completion time has passed (and not "too much" time beyond that).
     */
    void assertCompletionExpected() {
      assertAtLeastTimePassed(stopwatch, expectedCompletionWaitMillis);
      assertTimeNotPassed(stopwatch, expectedCompletionWaitMillis + LONG_DELAY_MS);

    assertThat((long) arraysDim1 * arraysDim2).isNotEqualTo((long) (arraysDim1 * arraysDim2));

    boolean[][] arrays = new boolean[arraysDim1][];
    // it's shared to avoid using too much memory in tests
    boolean[] sharedArray = new boolean[arraysDim2];
    Arrays.fill(arrays, sharedArray);

    try {
      Booleans.concat(arrays);
      fail();