You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: mod.rs
    path of file: ./repos/darkfi/src/contract/dao/src/entrypoint
    
    the code of the file until where you have to start completion: /* This file is part of DarkFi (https://dark.fi)
 *
 * Copyright (C) 2020-2024 Dyne.org foundation
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero 
    
fn process_update(cid: ContractId, update_data: &[u8]) -> ContractResult {
    match DaoFunction::try_from(update_data[0])? {
        DaoFunction::Mint => {
            let update: DaoMintUpdate = deserialize(&update_data[1..])?;
            Ok(dao_mint_process_update(cid, update)?)
        }

        DaoFunction::Propose => {
            let update: DaoProposeUpdate = deserialize(&update_data[1..])?;
            Ok(dao_propose_process_update(cid, update)?)
        }

        DaoFunction::Vote => {
            let update: DaoVoteUpdate = deserialize(&update_data[1..])?;
            Ok(dao_vote_process_update(cid, update)?)
        }

        DaoFunction::Exec => {
            let update: DaoExecUpdate = deserialize(&update_data[1..])?;
            Ok(dao_exec_process_update(cid, update)?)
        }

        DaoFunction::AuthMoneyTransfer => {
            // Does nothing, just verifies the other calls are correct
            Ok(())
        }
    }
}