@transaction.atomic
def transfer(debtor_id, creditor_id, amount, reference=None):
    withdraw(debtor_id, amount, reference)
    deposit(creditor_id, amount, reference)
find all statistics in o
dataset/ETHPy150Open uppsaladatavetare/foobar-api/src/wallet/api.py/transfer--crossover with--dataset/ETHPy150Open concurrence/concurrence/lib/concurrence/statistic.py/Statistic.find