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

@param bbn\db $db
@return bool
Returns true if the given DB connection is configured for history