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: lib.rs
    path of file: ./repos/diem/execution/executor-benchmark/src
    
    the code of the file until where you have to start completion: // Copyright (c) The Diem Core Contributors
// SPDX-License-Identifier: Apache-2.0

use diem_config::{
    config::{NodeConfig, RocksdbConfig},
    utils::get_genesis_txn,
};
use diem_crypto::{
    ed25519::{Ed25519PrivateKey, Ed25519PublicKey},
    hash::HashValue,
    PrivateKey, SigningKey, Uniform,
};
use diem_logger::prelude::*;
use diem_transaction_builder::stdlib::{
    encode_create_parent_vasp_account_script, encode_peer_to_peer_with_metadata_script,
};
use diem_types::{
    account_address::AccountAddress,
    account_config::{
        
    
    pub fn gen_account_creations(&self, block_size: usize) -> Vec<Vec<Transaction>> {
        let tc_account = treasury_compliance_account_address();
        let mut txn_block = vec![];

        for (i, block) in self.accounts.chunks(block_size).enumerate() {
            let mut transactions = Vec::with_capacity(block_size);
            for (j, account) in block.iter().enumerate() {
                let txn = create_transaction(
                    tc_account,
                    (i * block_size + j) as u64,
                    &self.genesis_key,
                    self.genesis_key.public_key(),
                    encode_create_parent_vasp_account_script(
                        xus_tag(),
                        0,
                        account.address,
                        account.auth_key_prefix(),
                        vec![],
                        false, /* add all currencies */
                    ),
                );
                transactions.push(txn);
            }
            if let Some(sender) = &self.block_sender {
                sender.send(transactions).unwrap();
            } else {
                txn_block.push(transactions);
            }
        }
        txn_block
    }