::new will return a Fog::DNS::OpenStack::V2 or a Fog::DNS::OpenStack::V1, choosing the latest available
# File lib/fog/dns/openstack.rb, line 6 def self.new(args = {}) @openstack_auth_uri = URI.parse(args[:openstack_auth_url]) if args[:openstack_auth_url] if inspect == 'Fog::DNS::OpenStack' service = Fog::DNS::OpenStack::V2.new(args) unless args.empty? service ||= Fog::DNS::OpenStack::V1.new(args) else service = Fog::Service.new(args) end service end