code: public static base_response update(nitro_service client, dnspolicy resource) throws Exception {
  		dnspolicy updateresource = new dnspolicy();
  		updateresource.name = resource.name;
  		updateresource.rule = resource.rule;
  		updateresource.viewname = resource.viewname;
  		updateresource.preferredlocation = resource.preferredlocation;
  		updateresource.preferredloclist = resource.preferredloclist;
  		updateresource.drop = resource.drop;
  		updateresource.cachebypass = resource.cachebypass;
  		updateresource.actionname = resource.actionname;
  		return updateresource.update_resource(client);
  	}
docs: Use this API to update dnspolicy.