# File lib/fog/compute/openstack/models/security_group_rules.rb, line 10
        def get(security_group_rule_id)
          if security_group_rule_id
            body = service.get_security_group_rule(security_group_rule_id).body
            new(body['security_group_rule'])
          end
        rescue Fog::Compute::OpenStack::NotFound
          nil
        end