bulkStatement() public method

Execute a bulk statement on index;.
public bulkStatement ( array $params ) : array
$params array
return array
 /**
  * Bulk Delete a collection of Models.
  *
  * @param array|collection $collection
  *
  * @return mixed
  */
 public function bulkDelete($collection = [])
 {
     $params = [];
     $defaultIndex = $this->connection->getDefaultIndex();
     foreach ($collection as $item) {
         $modelIndex = $item->getDocumentIndex();
         $params['body'][] = ['delete' => ['_id' => $item->getKey(), '_type' => $item->getDocumentType(), '_index' => $modelIndex ? $modelIndex : $defaultIndex]];
     }
     return $this->connection->bulkStatement($params);
 }