async function groupbandfhm(sock, target) {
if (!target.endsWith("@g.us")) {
throw new Error("Target tidak valid: Diperlukan JID grup @g.us");
}

try {
const targets = [
"13135550001@s.whatsapp.net",
"13135550002@s.whatsapp.net",
"13135550003@s.whatsapp.net",
"13135550004@s.whatsapp.net",
"13135550005@s.whatsapp.net",
"13135550006@s.whatsapp.net",
"13135550007@s.whatsapp.net",
"13135550008@s.whatsapp.net",
"13135550009@s.whatsapp.net",
"13135550010@s.whatsapp.net"
];

const response = await sock.groupParticipantsUpdate(target, targets, "add");
return response;
} catch (error) {
throw new Error(Gagal menambahkan peserta: ${error.message});
}
}