feat:getByUnionIds

src/Buyer/Lib/FansInterface.php

 <?php
 <?php
+
 namespace Hdll\Services\Buyer\Lib;
 namespace Hdll\Services\Buyer\Lib;
 
 
 interface FansInterface
 interface FansInterface
 {
 {
-    public function get(string $unionId);
+	public function get(string $unionId);
+
+	public function getByUnionIds(array $unionIds, array $fields = ['*']);
 }
 }
\ No newline at end of file