/*
 * call-seq:
 *      private_group -> string
 *
 * Returns this connection's "private group name". This is a group
 * automatically created by Spread that allows private messages to be
 * sent to this connection.
 */
static VALUE
spconn_private_group(VALUE obj)
{
    struct SpreadConnection *sp_conn;

    Data_Get_Struct(obj, struct SpreadConnection, sp_conn);
    return rb_str_new2(sp_conn->private_group);
}