original_string: public static function has_history(bbn\db $db): bool
    {
      $hash = $db->get_hash();
      return \in_array($hash, self::$dbs, true);
    }
code: public static function has_history(bbn\db $db): bool
    {
      $hash = $db->get_hash();
      return \in_array($hash, self::$dbs, true);
    }
code_tokens: public static function has_history ( bbn \ db $ db ) : bool { $ hash = $ db -> get_hash ( ) ; return \ in_array ( $ hash , self :: $ dbs , true ) ; }
docstring: Returns true if the given DB connection is configured for history
  
  @param bbn\db $db
  @return bool
docstring_tokens: Returns true if the given DB connection is configured for history