{* ../../docs_src/response_model/tutorial003_py310.py hl[22] *}

So, **FastAPI** will take care of filtering out all the data that is not declared in the output model (using Pydantic).

### `response_model` or Return Type { #response-model-or-return-type }

	hstats.totalS3Requests.Inc(api)
	code := w.StatusCode

	switch {
	case code == 0:
	case code == 499:
		// 499 is a good error, shall be counted as canceled.
		hstats.totalS3Canceled.Inc(api)
	case code >= http.StatusBadRequest:
		if code >= http.StatusInternalServerError {
			hstats.totalS35xxErrors.Inc(api)
		} else {

)

// Writes S3 compatible copy part range error.
func writeCopyPartErr(ctx context.Context, w http.ResponseWriter, err error, url *url.URL) {
	switch err {
	case errInvalidRange:
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopyPartRange), url)
		return
	case errInvalidRangeSource:
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopyPartRangeSource), url)
		return
	default:

Any HTTP (error) status code 401 "UNAUTHORIZED" is supposed to also return a `WWW-Authenticate` header.

In the case of bearer tokens (our case), the value of that header should be `Bearer`.

You can actually skip that extra header and it would still work.

But it's provided here to be compliant with the specifications.

        switch (this.ctlCode) {
        case Smb2IoctlRequest.FSCTL_DFS_GET_REFERRALS:
            return new DfsReferralResponseBuffer();
        case Smb2IoctlRequest.FSCTL_SRV_REQUEST_RESUME_KEY:
            return new SrvRequestResumeKeyResponse();
        case Smb2IoctlRequest.FSCTL_SRV_COPYCHUNK:
        case Smb2IoctlRequest.FSCTL_SRV_COPYCHUNK_WRITE:

			}
			publicIP = host
		case "ssh-private-key":
			sshPrivateKey = tokens[1]
		case "pub-key-algos":
			allowPubKeys = filterAlgos(arg, strings.Split(tokens[1], ","), supportedPubKeyAuthAlgos)
		case "kex-algos":
			allowKexAlgos = filterAlgos(arg, strings.Split(tokens[1], ","), supportedKexAlgos)
		case "cipher-algos":

        }
    }

    private static int mapArcfourMD5KeyUsage(int keyusage) {
        int ms_usage = keyusage;
        switch (ms_usage) {
        case 3:
            ms_usage = 8;
        case 9:
            ms_usage = 8;
        case 23:
            ms_usage = 13;
        }
        return ms_usage;
    }

    /**
     * Calculates a MAC using HMAC-SHA1 with AES key derivation.

        final JsonToken token = jsonParser.getCurrentToken();
        return switch (token) {
        case VALUE_STRING -> jsonParser.getText();
        case VALUE_NUMBER_INT -> jsonParser.getLongValue();
        case VALUE_NUMBER_FLOAT -> jsonParser.getDoubleValue();
        case VALUE_TRUE -> true;
        case VALUE_FALSE -> false;
        case VALUE_NULL -> null;
        default -> null; // Or throw an exception if unexpected token
        };

        switch (variant) {
        case DEFAULT_WITH_PS: {
            JAASAuthenticator a = new JAASAuthenticator();
            // Provide a preset Subject so the getSubject() path uses the (serviceName, ps, this) constructor
            a.setSubject(new Subject());
            return a;
        }
        case WITH_CONFIG: {

	var buf []byte
	switch object {
	case systemXMLObject:
		si := systemInfo{
			ProtocolVersion: `"1.0"`,
			ModelName:       "\"MinIO " + ReleaseTag + "\"",
		}
		si.ProtocolCapabilities.CapacityInfo = true

		// Default recommended block size with MinIO
		si.SystemRecommendations.KBBlockSize = 4096

		buf = encodeResponse(&si)
	case capacityXMLObject:
		objAPI := newObjectLayerFn()