pub fn register_entity(entity_id: String, entity_type: u8) -> bool {
    require(entity_id.len() > 0, "Invalid entity ID");
    return true;
}

pub fn get_entity_info(entity_id: String) -> u8 {
    return 0;
}

pub fn is_registered(entity_id: String) -> bool {
    return false;
}