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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_balance_context(self):
 """Get the high level balances"""

        bank_account = Account.objects.get(name='Bank')

        return dict(
            bank=bank_account,
            retained_earnings_accounts=Account.objects.filter(parent__name='Retained Earnings'),
        )