/**
  * Search for a specific translation.
  *
  * @param string|Translation $context  The context of the translation or a translation instance
  * @param string             $original The original string
  *
  * @return Translation|false
  */
 public function find($context, $original = '')
 {
     if ($context instanceof Translation) {
         $id = $context->getId();
     } else {
         $id = Translation::generateId($context, $original);
     }
     return $this->offsetExists($id) ? $this[$id] : false;
 }