Symfony 4原则，覆盖现有方法

Question

来自Symfony4的学说供应商，＆＃39;坚持＆＃39; method在参数中使用一个实体。我想创建我自己的apersist函数，它在参数中获取一个实体数组，如何通过一种新方法覆盖自定义类的EntityManager-＆gt; persist方法＆＃39; apersist＆＃39;像这样 ？

class MyEm extends EntityManager 
{
  public function apersist($entities){
    foreach($entities as $entity){
      // ?? (I tried with '$this->persist($entity)' or 'parent::persist($entity)' but I get errors) 
    }
}

来自班级管理员：

public function create(MyEm $mem){ // I get errors when I try use my MyEm class from create parameter
  $entities[] = new foo();
  $entities[] = new foo();
  $mem->apersist($entities);
}