/**
  * {@inheritdoc}
  *
  * @throws RuntimeException If the current directory has not yet been set.
  */
 public function removeLeaf(AssetInterface $leaf, $graceful = false)
 {
     if (!$this->innerCollection) {
         $this->loadCollection();
     }
     return $this->innerCollection->removeLeaf($leaf, $graceful);
 }
 /**
  * {@inheritdoc}
  */
 public function removeLeaf(AssetInterface $leaf, $graceful = false)
 {
     return $this->assetCollection->removeLeaf($leaf, $graceful);
 }