SilcClientEntry *silc_client_get_clients_local(SilcClient client,
                                                   SilcClientConnection conn,
                                                   const char *nickname,
                                                   const char *format,
                                                   SilcUInt32 *clients_count);

    Same as silc_client_get_clients function but does not resolve anything
    from the server. This checks local cache and returns all matching
    clients from the local cache. If none was found this returns NULL.
    The `nickname' is the real nickname of the client, and the `format'
    is the formatted nickname to find exact match from multiple found
    entries. The format must be same as given in the SilcClientParams
    structure to the client library. If the `format' is NULL all found
    clients by `nickname' are returned. The caller must return the
    returned array.