def get_firewalls(self):
        """Returns a list of all firewalls on the account.

        :returns: A list of firewalls on the current account.
        """

        mask = ('firewallNetworkComponents,'
                'networkVlanFirewall,'
                'dedicatedFirewallFlag,'
                'firewallGuestNetworkComponents,'
                'firewallInterfaces,'
                'firewallRules,'
                'highAvailabilityFirewallFlag')

        return [firewall
                for firewall in self.account.getNetworkVlans(mask=mask)
                if has_firewall(firewall)]
Returns a list of all firewalls on the account.

        :returns: A list of firewalls on the current account.