def deploy_tokens_and_fund_accounts(
    token_amount: int,
    number_of_tokens: int,
    deploy_service: BlockChainService,
    participants: typing.List[typing.Address],
    contract_manager: ContractManager,
) -> typing.List[typing.TokenAddress]:
    """ Deploy `number_of_tokens` ERC20 token instances with `token_amount` minted and
    distributed among `blockchain_services`. Optionally the instances will be registered with
    the raiden registry.

    Args:
        token_amount (int): number of units that will be created per token
        number_of_tokens (int): number of token instances that will be created
        deploy_service (BlockChainService): the blockchain connection that will deploy
        participants (list(address)): participant addresses that will receive tokens
    """
    result = list()
    for _ in range(number_of_tokens):
        token_address = deploy_contract_web3(
            CONTRACT_HUMAN_STANDARD_TOKEN,
            deploy_service.client,
            contract_manager=contract_manager,
            constructor_arguments=(token_amount, 2, "raiden", "Rd"),
        )

        result.append(token_address)

        # only the creator of the token starts with a balance (deploy_service),
        # transfer from the creator to the other nodes
        for transfer_to in participants:
            deploy_service.token(token_address).transfer(
                to_address=transfer_to, amount=token_amount // len(participants)
            )

    return result
def serialize_transaction(transaction):
    """
    Serializes a transaction to a data structure that is equivalent to the stored JSON format.
    :param transaction: the transaction to serialize (an instance of dnf.db.history.TransactionWrapper)
    """

    data = {
        "version": VERSION,
    }
    rpms = []
    groups = []
    environments = []

    if transaction is None:
        return data

    for tsi in transaction.packages():
        if tsi.is_package():
            rpms.append({
                "action": tsi.action_name,
                "nevra": tsi.nevra,
                "reason": libdnf.transaction.TransactionItemReasonToString(tsi.reason),
                "repo_id": tsi.from_repo
            })

        elif tsi.is_group():
            group = tsi.get_group()

            group_data = {
                "action": tsi.action_name,
                "id": group.getGroupId(),
                "packages": [],
                "package_types": libdnf.transaction.compsPackageTypeToString(group.getPackageTypes())
            }

            for pkg in group.getPackages():
                group_data["packages"].append({
                    "name": pkg.getName(),
                    "installed": pkg.getInstalled(),
                    "package_type": libdnf.transaction.compsPackageTypeToString(pkg.getPackageType())
                })

            groups.append(group_data)

        elif tsi.is_environment():
            env = tsi.get_environment()

            env_data = {
                "action": tsi.action_name,
                "id": env.getEnvironmentId(),
                "groups": [],
                "package_types": libdnf.transaction.compsPackageTypeToString(env.getPackageTypes())
            }

            for grp in env.getGroups():
                env_data["groups"].append({
                    "id": grp.getGroupId(),
                    "installed": grp.getInstalled(),
                    "group_type": libdnf.transaction.compsPackageTypeToString(grp.getGroupType())
                })

            environments.append(env_data)

    if rpms:
        data["rpms"] = rpms

    if groups:
        data["groups"] = groups

    if environments:
        data["environments"] = environments

    return data