(self,*auth)
Add authority records

            >>> q = DNSRecord.question("abc.com")
            >>> a = q.reply()
            >>> a.add_answer(*RR.fromZone("abc.com 60 A 1.2.3.4"))
            >>> a.add_auth(*RR.fromZone("abc.com 3600 NS nsa.abc.com"))
            >>> print(a)
            ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: ...
            ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0
            ;; QUESTION SECTION:
            ;abc.com.                       IN      A
            ;; ANSWER SECTION:
            abc.com.                60      IN      A       1.2.3.4
            ;; AUTHORITY SECTION:
            abc.com.                3600    IN      NS      nsa.abc.com.
Add authority records
Add authority records
def add_auth(self,*auth):
        """
            Add authority records

            >>> q = DNSRecord.question("abc.com")
            >>> a = q.reply()
            >>> a.add_answer(*RR.fromZone("abc.com 60 A 1.2.3.4"))
            >>> a.add_auth(*RR.fromZone("abc.com 3600 NS nsa.abc.com"))
            >>> print(a)
            ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: ...
            ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0
            ;; QUESTION SECTION:
            ;abc.com.                       IN      A
            ;; ANSWER SECTION:
            abc.com.                60      IN      A       1.2.3.4
            ;; AUTHORITY SECTION:
            abc.com.                3600    IN      NS      nsa.abc.com.
        """
        self.auth.extend(auth)
        self.set_header_qa()
def add_auth ( self , * auth ) : self . auth . extend ( auth ) self . set_header_qa ( )