laravel-admin 搜索之后如何重置表单

$grid->filter( function( $filter ) {
// 去掉默认的id过滤器
$filter->disableIdFilter();
$urls = url( ‘get/natural’ );
$filter->equal( ‘area_id’ , ( ‘分区’ ) )
->select(PublicModel::getAllAreaId())
->load( ‘natural_id’ , $urls );
$filter->equal(‘natural_id’,( ‘区域’ ))->select(PublicModel::getNaturn());

$filter->equal( ‘arname’ , __( ‘名称’ ) );
} );