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: init_chain.rs
    path of file: ./repos/namada/crates/apps/src/lib/node/ledger/shell
    
    the code of the file until where you have to start completion: //! Implementation of chain initialization for the Shell
use std::collections::HashMap;
use std::ops::ControlFlow;

use masp_primitives::merkle_tree::CommitmentTree;
use masp_primitives::sapling::Node;
use masp_proofs::bls12_381;
use namada::account::protocol_pk_key;
use namada::core::hash::Hash as CodeHash;
use namada::core::time::{TimeZone, Utc};
use namada::ledger::parameters::Parameters;
use namada::ledger::{ibc, pos};
use namada::proof_of_stake::BecomeValidator;
use namada::state::StorageWrite;
use namada::token::{credit_tokens, write_denom};
use namada::vm::validate_untrusted_wasm;
use namada_sdk::eth_bridge::EthBridgeStatus;
use namada_sdk::proof_of_stake::PosParams;

use super::*;
use crate::config::genesis::chain::{
    FinalizedEstablishedAccountTx, FinalizedTokenConfig,
    FinalizedValidatorAccountTx,
};
use crate::config::genesis::templates::{TokenBalances, TokenConfig};
use crate::config::genesis::transactions::{
    BondTx, EstablishedAccountTx, Signed as SignedTx, ValidatorAccountTx,
};
use crate::facade::tendermint_proto::google::protobuf;
use crate::wasm_loader;

/// Errors that represent panics in normal flow but get demoted to errors
/// when dry-running genesis files in order to accumulate as many problems
/// as possible in a report.
#[derive(Error, Debug, Clone, PartialEq)]
enum Panic {
    #[error(
        "No VP found matching the expected implicit VP sha256 hash: \
         {0}\n(this will be `None` if no wasm file was found for the implicit \
         vp)"
    )]
    MissingImplicitVP(String),
    #[error("Missing validity predicate for {0}")]
    MissingVpWasmConfig(String),
    #[error("Could not find checksums.json file")]
    ChecksumsFile,
    #[error("Invalid wasm code sha256 hash for {0}")]
    Checksum(String),
    #[error(
        "Config for token '{0}' with configured balance not found in genesis"
    )]
    MissingTokenConfig(String),
    #[error("Failed to read wasm {0} with reason: {1}")]
    ReadingWasm(String
    
    fn test_dry_run_store_wasms() {
        let (mut shell, _x, _y, _z) = TestShell::new_at_height(0);
        let test_dir = tempfile::tempdir().unwrap();
        shell.wasm_dir = test_dir.path().into();

        let genesis = genesis::make_dev_genesis(1, &shell.base_dir);
        let mut initializer = InitChainValidation::new(&mut shell, true);

        let res = initializer
            .store_wasms(&genesis.get_chain_parameters(PathBuf::new()));
        assert_eq!(res, ControlFlow::Continue(()));
        let expected = vec![Panic::ChecksumsFile];
        assert_eq!(expected, initializer.panics);
        initializer.panics.clear();

        let checksums_file = test_dir.path().join("checksums.json");
        std::fs::write(
            &checksums_file,
            r#"{
            "tx_get_rich.wasm": "tx_get_rich.moneymoneymoney"
        }"#,
        )
        .expect("Test failed");
        let res = initializer
            .store_wasms(&genesis.get_chain_parameters(test_dir.path()));
        assert_eq!(res, ControlFlow::Continue(()));
        let errors = initializer.errors.iter().collect::<Vec<_>>();
        let [Error::ReadingWasm(_), Error::LoadingWasm(_)]: [&Error; 2] =
            errors.try_into().expect("Test failed")
        else {
            panic!("Test failed");
        };
        let expected_panics = vec![
            Panic::Checksum("tx_get_rich.wasm".into()),
            Panic::MissingImplicitVP("None".into()),
        ];
        assert_eq!(initializer.panics, expected_panics);

        initializer.panics.clear();
        initializer.errors.clear();

        std::fs::write(
            checksums_file,
            r#"{
            "tx_stuff.wasm": "tx_stuff"
        }"#,
        )
        .expect("Test failed");
        let res = initializer
            .store_wasms(&genesis.get_chain_parameters(test_dir.path()));
        assert_eq!(res, ControlFlow::Continue(()));
        let errors = initializer.errors.iter().collect::<Vec<_>>();
        let [
            Error::ReadingWasm(_),
            Error::LoadingWasm(_),
            Error::LoadingWasm(_),
        ]: [&Error; 3] = errors.try_into().expect("Test failed")
        else {
            panic!("Test failed");
        };
        let expected_panics = vec![Panic::MissingImplicitVP("None".into())];
        assert_eq!(initializer.panics, expected_panics);
    }