assertThat(buffer.readByteString()).isEqualTo("A20743054A6F6E6573".decodeHex())
  }

  @Test fun `decode implicit tagged implicit prefixed type`() {
    // Type1 ::= VisibleString
    // Type2 ::= [APPLICATION 3] IMPLICIT Type1
    // Type3 ::= [2] Type2
    // Type4 ::= [APPLICATION 7] IMPLICIT Type3
    val buffer =
      Buffer()
        .write("670743054A6F6E6573".decodeHex())

    val derReader = DerReader(buffer)

The key updated docs are:

* Python Types Intro:
    * [Type Hints with Metadata Annotations](https://fastapi.tiangolo.com/python-types/#type-hints-with-metadata-annotations).
* Tutorial:

        pos += writeSecurityBufferContent(type3, pos, domOff, domainBytes);
        pos += writeSecurityBufferContent(type3, pos, userOff, userBytes);
        pos += writeSecurityBufferContent(type3, pos, wsOff, workstationBytes);
        pos += writeSecurityBufferContent(type3, pos, skOff, sessionKeyBytes);

        return type3;

    }


    @Override

                Type1Message type1 = new Type1Message(src);
                Type2Message type2 = new Type2Message(type1, challenge, null);
                msg = Base64.encode(type2.toByteArray());
                resp.setHeader( "WWW-Authenticate", "NTLM " + msg );
            } else if (src[8] == 3) {
                Type3Message type3 = new Type3Message(src);
                byte[] lmResponse = type3.getLMResponse();

                Type1Message type1 = new Type1Message(src);
                Type2Message type2 = new Type2Message(tc, type1, challenge, null);
                msg = new String(Base64.encode(type2.toByteArray()), "US-ASCII");
                resp.setHeader("WWW-Authenticate", "NTLM " + msg);
            }
            else if ( src[ 8 ] == 3 ) {
                Type3Message type3 = new Type3Message(src);

            }
            Type1Message type1 = (Type1Message) attemptNegotiation(response);
            if (type1 == null) return; // no NTLM
            int attempt = 0;
            while (attempt < MAX_REDIRECTS) {
                connection.setRequestProperty(authProperty, authMethod + ' ' +
                        Base64.encode(type1.toByteArray()));
                connection.connect(); // send type 1

     * 
     * @param tc
     *            context to use
     * @param type1
     *            The Type-1 message which this represents a response to.
     */
    public Type2Message ( CIFSContext tc, Type1Message type1 ) {
        this(tc, type1, null, null);
    }


    /**
     * Creates a Type-2 message in response to the given Type-1 message.
     * 
     * @param tc
     *            context to use

            offset += ntLength;
            writeSecurityBuffer(type3, 28, offset, domain);
            offset += domainLength;
            writeSecurityBuffer(type3, 36, offset, user);
            offset += userLength;
            writeSecurityBuffer(type3, 44, offset, workstation);
            offset += workstationLength;
            writeSecurityBuffer(type3, 52, offset, sessionKey);

Diese Typen mit inneren Typen werden „**generische**“ Typen genannt. Es ist möglich, sie mit ihren inneren Typen zu deklarieren.

Um diese Typen und die inneren Typen zu deklarieren, können Sie Pythons Standardmodul `typing` verwenden. Es existiert speziell für die Unterstützung dieser Typhinweise.

#### Neuere Python-Versionen

                    return;
                }
                NtlmMessage type3 = attemptNegotiation(response);
                if ( type3 == null )
                    return;
                this.connection.setRequestProperty(this.authProperty, this.authMethod + ' ' + Base64.toBase64String(type3.toByteArray()));
                this.connection.connect(); // send type 3
                if ( this.cachedOutput != null && this.doOutput ) {