Method: messages.readDiscussion

Mark a thread as read

Parameters:

Name	Type	Description	Required
peer	Username, chat ID, Update, Message or InputPeer	Group ID	Optional
msg_id	int	ID of message that started the thread	Optional
read_max_id	int	ID up to which thread messages were read	Optional

Return type: Bool

Can userbots use this method: YES

Can bots use this method: NO

MadelineProto Example (now async for huge speed and parallelism!):

if (!file_exists('madeline.php')) {
    copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
}
include 'madeline.php';

$MadelineProto = new \danog\MadelineProto\API('session.madeline');
$MadelineProto->start();

$Bool = $MadelineProto->messages->readDiscussion(peer: $InputPeer, msg_id: $int, read_max_id: $int, );