gistfile1.txt

def save
          raise Fog::Errors::Error.new('Resaving an existing object may create a duplicate') if identity
          requires :firewall_policy_id
          options = {
            :firewall_policy => firewall_policy_id,
            :protocol => protocol,
            :description => description,
            :source => source,
            :source_port => source_port,
            :destination => destination,
            :destination_port => destination_port,
            :icmp_type_name => icmp_type_name
          }.delete_if {|k,v| v.nil? || v == "" }
          data = connection.create_firewall_rule(options)
          merge_attributes(data)
          true
        end