code: public static base_response add(nitro_service client, forwardingsession resource) throws Exception {
  		forwardingsession addresource = new forwardingsession();
  		addresource.name = resource.name;
  		addresource.network = resource.network;
  		addresource.netmask = resource.netmask;
  		addresource.acl6name = resource.acl6name;
  		addresource.aclname = resource.aclname;
  		addresource.connfailover = resource.connfailover;
  		return addresource.add_resource(client);
  	}
docs: Use this API to add forwardingsession.