* Calculates a Message Integrity Code (MIC) for the given data.
     * @param data the data to calculate MIC for
     * @return MIC
     * @throws CIFSException if an error occurs calculating the MIC
     */
    byte[] calculateMIC(byte[] data) throws CIFSException;

    /**
     * Verifies a Message Integrity Code (MIC) for the given data.
     * @param data the data to verify
     * @param mic the MIC to verify against

		versions = append(versions, content)
	}

	data.Name = bucket
	data.Versions = versions
	data.EncodingType = encodingType
	data.Prefix = s3EncodeName(prefix, encodingType)
	data.KeyMarker = s3EncodeName(marker, encodingType)
	data.Delimiter = s3EncodeName(delimiter, encodingType)
	data.MaxKeys = maxKeys

	data.NextKeyMarker = s3EncodeName(resp.NextMarker, encodingType)
	data.NextVersionIDMarker = resp.NextVersionIDMarker

                        e.getChildUrlList()
                                .stream() //
                                .filter(data -> !processedUrls.contains(data.getUrl())) //
                                .map(data -> new CrawlRequest(data.getUrl(), crawlRequest.getDepth() + 1)) //
                                .forEach(requestQueue::offer);
                    }

                                            <c:forEach var="data" varStatus="s"
                                                       items="${pathMappingItems}">
                                                <tr
                                                        data-href="${contextPath}/admin/pathmap/details/4/${f:u(data.id)}">
                                                    <td>${f:h(data.regex)}</td>

 * @param data Additional data associated with this request trace, typically containing the actual request
 *             object being processed or any application-specific state information. May be null if no
 *             additional data is needed.
 */
public record RequestTrace(@Nullable String context, @Nullable RequestTrace parent, @Nullable Object data) {

	}

	newReader := func() io.ReadCloser {
		r, w := io.Pipe()
		go func() {
			// Initialize MRF meta header.
			var data [4]byte
			binary.LittleEndian.PutUint16(data[0:2], healMRFMetaFormat)
			binary.LittleEndian.PutUint16(data[2:4], healMRFMetaVersionV1)
			mw := msgp.NewWriter(w)
			n, err := mw.Write(data[:])
			if err != nil {

And of course, it supports the same:

* data validation
* data serialization
* data documentation, etc.

This works the same way as with Pydantic models. And it is actually achieved in the same way underneath, using Pydantic.

/// info

- `GenerateKey`: Takes a key ID and generates a new data key from a master key referenced by the key ID. It returns the new data key in two different forms: The plain data key and the data key encrypted using the master key.

- `DecryptKey`: Takes a key ID and an encrypted data key and returns the plain data key - the decryption of the encrypted data key using the master key referenced by the key ID - on success or an error otherwise.

	defer clientConn.Close()

	const data = "data"
	r := bufio.NewReader(strings.NewReader(data))
	n, err := io.Copy(clientConn, r)
	if err != nil {
		t.Fatal(err)
	}

	if n != int64(len(data)) {
		t.Errorf("io.Copy returned %d, want %d", n, len(data))
	}

	clientConn.Close()
	tot := <-ch

	if tot != len(data) {
		t.Errorf("server read %d, want %d", tot, len(data))
	}

///

## About "Form Fields" { #about-form-fields }

The way HTML forms (`<form></form>`) sends the data to the server normally uses a "special" encoding for that data, it's different from JSON.

**FastAPI** will make sure to read that data from the right place instead of JSON.

/// note | Technical Details

Data from forms is normally encoded using the "media type" `application/x-www-form-urlencoded`.