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

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

Now let's **refactor** this app a bit to increase **security** and **versatility**.

  }

  /**
   * Returns the number of times {@link Cache} lookup methods have returned an uncached (newly
   * loaded) value, or null. Multiple concurrent calls to {@link Cache} lookup methods on an absent
   * value can result in multiple misses, all returning the results of a single cache load
   * operation.
   */
  public long missCount() {
    return missCount;
  }

  /**

## Dependencies for groups of *path operations* { #dependencies-for-groups-of-path-operations }

        assertEquals("NTLM", request.getAuthType());
        verify(mockPrincipal, times(1)).getName();
    }

    @ParameterizedTest
    @ValueSource(strings = { "", "   ", "unknown" })
    @DisplayName("supports multiple principal name variants")
    void testPrincipalNameVariants(String name, @Mock HttpServletRequest mockRequest, @Mock Principal mockPrincipal) {
        when(mockPrincipal.getName()).thenReturn(name);

		//  Used to test the listing for the case of multiple uploadID's for a given object.
		res, err = obj.NewMultipartUpload(context.Background(), bucketNames[1], objectNames[0], opts)
		if err != nil {
			// Failed to create NewMultipartUpload, abort.
			t.Fatalf("%s : %s", instanceType, err.Error())
		}

		uploadIDs = append(uploadIDs, res.UploadID)
	}

	// Bucket to test for multiple objects, each with unique UUID.

They tend to require more complex configurations, a message/job queue manager, like RabbitMQ or Redis, but they allow you to run background tasks in multiple processes, and especially, in multiple servers.

But if you need to access variables and objects from the same **FastAPI** app, or you need to perform small background tasks (like sending an email notification), you can simply just use `BackgroundTasks`.

            assertEquals(0, init.getContextFlags());
        }

        @Test
        @DisplayName("Multiple flags can be combined correctly")
        void testMultipleFlagsCombination() {
            NegTokenInit init = new NegTokenInit();

            // Set multiple flags
            init.setContextFlag(NegTokenInit.DELEGATION, true);
            init.setContextFlag(NegTokenInit.INTEGRITY, true);

```
KEY:
etcd  federate multiple clusters for IAM and Bucket DNS

ARGS:
endpoints*       (csv)       comma separated list of etcd endpoints e.g. "http://localhost:2379"
path_prefix      (path)      namespace prefix to isolate tenants e.g. "customer1/"

	I        MultiFlag
	PrintOut int
	DebugV   bool
)

func init() {
	flag.Var(&D, "D", "predefined symbol with optional simple value -D=identifier=value; can be set multiple times")
	flag.Var(&I, "I", "include directory; can be set multiple times")
	flag.BoolVar(&DebugV, "v", false, "print debug output")
	flag.Var(objabi.NewDebugFlag(&DebugFlags, nil), "d", "enable debugging settings; try -d help")
	objabi.AddVersionFlag() // -V

            assertEquals(1, SMBUtil.readInt2(buffer, 0));
            assertEquals(EncryptionNegotiateContext.CIPHER_AES128_CCM, SMBUtil.readInt2(buffer, 2));
        }

        @Test
        @DisplayName("Should encode multiple ciphers correctly")
        void testEncodeMultipleCiphers() {
            int[] ciphers = { EncryptionNegotiateContext.CIPHER_AES128_CCM, EncryptionNegotiateContext.CIPHER_AES128_GCM };