How to use the zeroconf.DNSRecord function in zeroconf

def __eq__(self, other):
        """Tests equality as per DNSRecord"""
        return isinstance(other, DNSRecord) and DNSEntry.__eq__(self, other)

DNSRecord.__init__(self, name, type, clazz, ttl)
        self.alias = alias

    def write(self, out):
        """Used in constructing an outgoing packet"""
        out.writeName(self.alias)

    def __eq__(self, other):
        """Tests equality on alias"""
        return isinstance(other, DNSPointer) and self.alias == other.alias

    def __repr__(self):
        """String representation"""
        return self.toString(self.alias)

class DNSText(DNSRecord):
    """A DNS text record"""

    def __init__(self, name, type, clazz, ttl, text):
        DNSRecord.__init__(self, name, type, clazz, ttl)
        self.text = text

    def write(self, out):
        """Used in constructing an outgoing packet"""
        out.writeString(self.text)

    def __eq__(self, other):
        """Tests equality on text"""
        return isinstance(other, DNSText) and self.text == other.text

    def __repr__(self):
        """String representation"""

def write(self, out):
        """Used in constructing an outgoing packet"""
        out.writeString(self.cpu)
        out.writeString(self.oso)

    def __eq__(self, other):
        """Tests equality on cpu and os"""
        return (isinstance(other, DNSHinfo) and
                self.cpu == other.cpu and self.os == other.os)

    def __repr__(self):
        """String representation"""
        return self.cpu + " " + self.os

class DNSPointer(DNSRecord):
    """A DNS pointer record"""

    def __init__(self, name, type, clazz, ttl, alias):
        DNSRecord.__init__(self, name, type, clazz, ttl)
        self.alias = alias

    def write(self, out):
        """Used in constructing an outgoing packet"""
        out.writeName(self.alias)

    def __eq__(self, other):
        """Tests equality on alias"""
        return isinstance(other, DNSPointer) and self.alias == other.alias

    def __repr__(self):
        """String representation"""

"""Sets this record's TTL and created time to that of
        another record."""
        self.created = other.created
        self.ttl = other.ttl

    def write(self, out):
        """Abstract method"""
        raise AbstractMethodException

    def toString(self, other):
        """String representation with addtional information"""
        arg = "%s/%s,%s" % (self.ttl,
            self.getRemainingTTL(currentTimeMillis()), other)
        return DNSEntry.toString(self, "record", arg)

class DNSAddress(DNSRecord):
    """A DNS address record"""

    def __init__(self, name, type, clazz, ttl, address):
        DNSRecord.__init__(self, name, type, clazz, ttl)
        self.address = address

    def write(self, out):
        """Used in constructing an outgoing packet"""
        out.writeString(self.address)

    def __eq__(self, other):
        """Tests equality on address"""
        return isinstance(other, DNSAddress) and self.address == other.address

    def __repr__(self):
        """String representation"""

def __eq__(self, other):
        """Tests equality as per DNSRecord"""
        return isinstance(other, DNSRecord) and DNSEntry.__eq__(self, other)

DNSRecord.__init__(self, name, type, clazz, ttl)
        self.alias = alias

    def write(self, out):
        """Used in constructing an outgoing packet"""
        out.writeName(self.alias)

    def __eq__(self, other):
        """Tests equality on alias"""
        return isinstance(other, DNSPointer) and self.alias == other.alias

    def __repr__(self):
        """String representation"""
        return self.toString(self.alias)

class DNSText(DNSRecord):
    """A DNS text record"""
    
    def __init__(self, name, type, clazz, ttl, text):
        DNSRecord.__init__(self, name, type, clazz, ttl)
        self.text = text

    def write(self, out):
        """Used in constructing an outgoing packet"""
        out.writeString(self.text)

    def __eq__(self, other):
        """Tests equality on text"""
        return isinstance(other, DNSText) and self.text == other.text

    def __repr__(self):
        """String representation"""

def write(self, out):
        """Used in constructing an outgoing packet"""
        out.writeString(self.text)

    def __eq__(self, other):
        """Tests equality on text"""
        return isinstance(other, DNSText) and self.text == other.text

    def __repr__(self):
        """String representation"""
        if len(self.text) > 10:
            return self.toString(self.text[:7] + "...")
        else:
            return self.toString(self.text)

class DNSService(DNSRecord):
    """A DNS service record"""
    
    def __init__(self, name, type, clazz, ttl, priority, weight, port, server):
        DNSRecord.__init__(self, name, type, clazz, ttl)
        self.priority = priority
        self.weight = weight
        self.port = port
        self.server = server

    def write(self, out):
        """Used in constructing an outgoing packet"""
        out.writeShort(self.priority)
        out.writeShort(self.weight)
        out.writeShort(self.port)
        out.writeName(self.server)

def write(self, out):
        """Used in constructing an outgoing packet"""
        out.writeString(self.address)

    def __eq__(self, other):
        """Tests equality on address"""
        return isinstance(other, DNSAddress) and self.address == other.address

    def __repr__(self):
        """String representation"""
        try:
            return socket.inet_ntoa(self.address)
        except:
            return self.address

class DNSHinfo(DNSRecord):
    """A DNS host information record"""

    def __init__(self, name, type, clazz, ttl, cpu, os):
        DNSRecord.__init__(self, name, type, clazz, ttl)
        self.cpu = cpu
        self.os = os

    def write(self, out):
        """Used in constructing an outgoing packet"""
        out.writeString(self.cpu)
        out.writeString(self.oso)

    def __eq__(self, other):
        """Tests equality on cpu and os"""
        return (isinstance(other, DNSHinfo) and
                self.cpu == other.cpu and self.os == other.os)