* Il existe une extension du protocole TLS (celui qui gère le cryptage au niveau TCP, avant HTTP) appelée <a
  href="https://fr.wikipedia.org/wiki/Server_Name_Indication" class="external-link" target="_blank"><abbr
  title="Server Name Indication (indication du nom du serveur)">SNI (indication du nom du serveur)</abbr></a>.

   * received without TLS.
   */
  val handshake: Handshake?
  val requestUrl: HttpUrl?

  /**
   * Returns the name of the server the client requested via the SNI (Server Name Indication)
   * attribute in the TLS handshake. Unlike the rest of the HTTP exchange, this name is sent in
   * cleartext and may be monitored or blocked by a proxy or other middlebox.
   */
  val handshakeServerNames: List<String>

 *
 * ## Modern TLS
 *
 * There are trade-offs when selecting which options to include when negotiating a secure connection
 * to a remote host. Newer TLS options are quite useful:
 *
 *  * Server Name Indication (SNI) enables one IP address to negotiate secure connections for
 *    multiple domain names.
 *
 *  * Application Layer Protocol Negotiation (ALPN) enables the HTTPS port (443) to be used to
 *    negotiate HTTP/2.
 *

    * 🙅‍♂ 🤔 ❔ 🦏 👆 💽 ⚖️ ❔ 🤪 🔠 🈸 👆 ✔️ 🔛 ⚫️ 💪.
    * 📤 **⚗** 👉, 👐.
* 📤 **↔** **🤝** 🛠️ (1️⃣ 🚚 🔐 🕸 🎚, ⏭ 🇺🇸🔍) 🤙 **<a href="https://en.wikipedia.org/wiki/Server_Name_Indication" class="external-link" target="_blank"><abbr title="Server Name Indication">👲</abbr></a>**.
    * 👉 👲 ↔ ✔ 1️⃣ 👁 💽 (⏮️ **👁 📢 📢**) ✔️ **📚 🇺🇸🔍 📄** &amp; 🍦 **💗 🇺🇸🔍 🆔/🈸**.
    * 👉 👷, **👁** 🦲 (📋) 🏃 🔛 💽, 👂 🔛 **📢 📢 📢**, 🔜 ✔️ **🌐 🇺🇸🔍 📄** 💽.

		}
	}
	return keys, nil
}

// serialize will serialize the provided keys and values.
// The function will panic if keys/value slices aren't of equal length.
// Payload size can give an indication of expected payload size.
// If plSize is <= 0 it will be calculated.
func (x *xlMetaInlineData) serialize(plSize int, keys [][]byte, vals [][]byte) {
	if len(keys) != len(vals) {

/**
 * metadata graph vertice - just a wrapper around artifact's metadata
 *
 */
@Deprecated
public class MetadataGraphVertex implements Comparable<MetadataGraphVertex> {
    ArtifactMetadata md;

    // indications to use these in comparison
    private boolean compareVersion = false;
    private boolean compareScope = false;

    public MetadataGraphVertex(ArtifactMetadata md) {
        super();
        this.md = md;
    }