Can not get User structure for some users

[laomms]

When I receive a greeting from a new user, most of them can get the user structure by: Users.TryGetValue(peerUser.user_id, out var user),
but some new users cannot get the user structure, I try use

var inputPeer = new InputUserFromMessage
{
    user_id = unm.message.Peer.ID,
    peer = new InputPeerUser(unm.message.Peer.ID, user.access_hash),
    msg_id = unm.message.ID
};

But since I can't get the user structure, I can't get user's access_hash, I try use 0 repalce, but can not send message to this user by await _client.SendMessageAsync(inputPeer.peer, "hello").
How should I respond to users like this?
I can't add them to my contacts with _client.Contacts_AddContact(...) too, but I can add them with a manual click on the telegram client.

[wiz0u]

that's not a Github issue

see https://stackoverflow.com/a/71058797/3365403 and https://wiz0u.github.io/WTelegramClient/EXAMPLES.html#get-chat-and-user-info-from-a-message

[github-actions]

Please note that Github issues should be used only for problems with the library code itself.

For questions about Telegram API usage, you can search the API official documentation and the full list of methods.
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