### Custom Generate Unique ID Function { #custom-generate-unique-id-function }

FastAPI uses a **unique ID** for each *path operation*, which is used for the **operation ID** and also for the names of any needed custom models, for requests or responses.

You can customize that function. It takes an `APIRoute` and outputs a string.

        case FILE_MODIFIED:
            // Remove from cache to force refresh
            entry.removeChild(childName);
            break;

        case DIRECTORY_RENAMED:
            // Full invalidation needed
            entry.invalidate();
            break;

        case ATTRIBUTES_CHANGED:
            // Remove from cache to force refresh
            entry.removeChild(childName);
            break;
        }

	if dataBlocks+parityBlocks > 256 {
		return e, reedsolomon.ErrMaxShardNum
	}

	e = Erasure{
		dataBlocks:   dataBlocks,
		parityBlocks: parityBlocks,
		blockSize:    blockSize,
	}

	// Encoder when needed.
	var enc reedsolomon.Encoder
	var once sync.Once
	e.encoder = func() reedsolomon.Encoder {
		once.Do(func() {
			e, err := reedsolomon.New(dataBlocks, parityBlocks, reedsolomon.WithAutoGoroutines(int(e.ShardSize())))

        MessageDigest md5 = MessageDigest.getInstance("MD5");
        byte[] ipad = new byte[64];
        byte[] opad = new byte[64];

        // HMACT64 specific: truncate key to 64 bytes if needed
        int keyLen = Math.min(key.length, 64);
        for (int i = 0; i < keyLen; i++) {
            ipad[i] = (byte) (key[i] ^ 0x36);
            opad[i] = (byte) (key[i] ^ 0x5c);
        }

            rem = 8 + rem;
        }
        return size + 8 - rem;
    }

    /**
     * Calculates padding needed to align to 8-byte boundary from header start.
     *
     * @param dstIndex the current destination index
     * @return number of padding bytes needed
     */
    protected final int pad8(final int dstIndex) {
        final int fromHdr = dstIndex - this.headerStart;

- Simpler implementation than [AWS S3 Bucket Replication Config](https://docs.aws.amazon.com/AmazonS3/latest/dev/replication-add-config.html) with requirements such as IAM Role, AccessControlTranslation, Metrics and SourceSelectionCriteria are not needed with MinIO.
- Active-Active replication
- Multi destination replication

## How to use?

**3. Review**

-   For a valid PR, reviewer (person familiar with the code/functionality)
    checks if the PR looks good or needs additional changes.
-   If all looks good, the reviewer will approve the PR.
-   If a change is needed, the contributor is requested to make the suggested
    change.
-   You make the change and submit it for the review again.
-   This cycle repeats itself until the PR gets approved.

    private SmbTree smbTree;

    @Mock
    private SmbTree mockWrappedTree;

    /**
     * Setup method executed before each test.
     */
    @BeforeEach
    void setUp() {
        // Common setup if needed
    }

    /**
     * Test for unwrap() method with matching type.
     * Verifies that unwrap returns the correct instance when the type matches.
     */
    @Test
    void testUnwrap_withMatchingType() {

	}

	sys.printIAMRoles()
	sys.Unlock()

	retryCtx, cancel := context.WithCancel(ctx)

	// Indicate to our routine to exit cleanly upon return.
	defer cancel()

	// Migrate storage format if needed.
	for {
		// Migrate IAM configuration, if necessary.
		if err := saveIAMFormat(retryCtx, sys.store); err != nil {
			if configRetriableErrors(err) {
				retryInterval := time.Duration(r.Float64() * float64(time.Second))

    // Concrete implementation of MonitorTarget for testing
    private static class TestMonitorTarget extends MonitorTarget {
        @Override
        public void expired() {
            // Implementation not needed for these tests
        }
    }