-added two new data classes to models (Withdrawal and Deposit)
-added tests for withdrawals and deposits
-added functionality for withdraw and add money
-created db_population.py file that has a function which creates a special cash_withdrawal account at the initialisation of the app (user + account) - attributes could be revised
-updated main file to include the population file
-added two new data classes to models (Withdrawal and Deposit) -added tests for withdrawals and deposits -added functionality for withdraw and add money -created db_population.py file that has a function which creates a special cash_withdrawal account at the initialisation of the app (user + account) - attributes could be revised -updated main file to include the population file
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