How to use the iroha.IrohaCrypto function in iroha

def send_tx(self):
            iroha = Iroha('admin@test')

            tx = iroha.transaction([iroha.command(
                'TransferAsset', src_account_id='admin@test', dest_account_id='test@test', asset_id='coin#test',
                amount='0.01', description=HOSTNAME
            )])
            ic.sign_transaction(tx, ADMIN_PRIVATE_KEY)
            self.client.send_tx_await(tx)

def send_tx():
    rand_name = uuid.uuid4().hex
    rand_key = IrohaCrypto.private_key()
    domain = ADMIN_ACCOUNT_ID.split('@')[1]
    tx = iroha.transaction([
        iroha.command('CreateAccount',
                      account_name=rand_name,
                      domain_id=domain,
                      public_key=rand_key)
    ])
    IrohaCrypto.sign_transaction(tx, ADMIN_PRIVATE_KEY)
    net.send_tx(tx)
    print('tx is sent')

def send_tx():
    rand_name = uuid.uuid4().hex
    rand_key = IrohaCrypto.private_key()
    domain = ADMIN_ACCOUNT_ID.split('@')[1]
    tx = iroha.transaction([
        iroha.command('CreateAccount',
                      account_name=rand_name,
                      domain_id=domain,
                      public_key=rand_key)
    ])
    IrohaCrypto.sign_transaction(tx, ADMIN_PRIVATE_KEY)
    net.send_tx(tx)
    print('tx is sent')

def userone_grants_to_admin_set_account_detail_permission():
    """
    Make admin@test able to set detail to userone@domain
    """
    tx = iroha.transaction([
        iroha.command('GrantPermission', account_id='admin@test',
                      permission=can_set_my_account_detail)
    ], creator_account='userone@domain')
    IrohaCrypto.sign_transaction(tx, user_private_key)
    send_transaction_and_print_status(tx)

def transfer_coin_from_admin_to_userone():
    """
    Transfer 2.00 'coin#domain' from 'admin@test' to 'userone@domain'
    """
    tx = iroha.transaction([
        iroha.command('TransferAsset', src_account_id='admin@test', dest_account_id='userone@domain',
                      asset_id='coin#domain', description='init top up', amount='2.00')
    ])
    IrohaCrypto.sign_transaction(tx, ADMIN_PRIVATE_KEY)
    send_transaction_and_print_status(tx)

def get_userone_details():
    """
    Get all the kv-storage entries for userone@domain
    """
    query = iroha.query('GetAccountDetail', account_id='userone@domain')
    IrohaCrypto.sign_query(query, ADMIN_PRIVATE_KEY)

    response = net.send_query(query)
    data = response.account_detail_response
    print('Account id = {}, details = {}'.format('userone@domain', data.detail))

def add_keys_and_set_quorum():
    alice_iroha = Iroha('alice@test')
    alice_cmds = [
        alice_iroha.command('AddSignatory', account_id='alice@test',
                            public_key=alice_public_keys[1]),
        alice_iroha.command('SetAccountQuorum',
                            account_id='alice@test', quorum=2)
    ]
    alice_tx = alice_iroha.transaction(alice_cmds)
    ic.sign_transaction(alice_tx, alice_private_keys[0])
    send_transaction_and_print_status(alice_tx)

    bob_iroha = Iroha('bob@test')
    bob_cmds = [
        bob_iroha.command('AddSignatory', account_id='bob@test',
                          public_key=bob_public_keys[1]),
        bob_iroha.command('SetAccountQuorum', account_id='bob@test', quorum=2)
    ]
    bob_tx = bob_iroha.transaction(bob_cmds)
    ic.sign_transaction(bob_tx, bob_private_keys[0])
    send_transaction_and_print_status(bob_tx)

domain_id='test', precision=2),
        iroha.command('AddAssetQuantity',
                      asset_id='bitcoin#test', amount='100000'),
        iroha.command('AddAssetQuantity',
                      asset_id='dogecoin#test', amount='20000'),
        iroha.command('CreateAccount', account_name='alice', domain_id='test',
                      public_key=alice_public_keys[0]),
        iroha.command('CreateAccount', account_name='bob', domain_id='test',
                      public_key=bob_public_keys[0]),
        iroha.command('TransferAsset', src_account_id='admin@test', dest_account_id='alice@test',
                      asset_id='bitcoin#test', description='init top up', amount='100000'),
        iroha.command('TransferAsset', src_account_id='admin@test', dest_account_id='bob@test',
                      asset_id='dogecoin#test', description='init doge', amount='20000')
    ]
    init_tx = iroha.transaction(init_cmds)
    ic.sign_transaction(init_tx, ADMIN_PRIVATE_KEY)
    send_transaction_and_print_status(init_tx)