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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(self, accountId):
 """Fetch a single account"""

        account = BaseAccount.get(accountId)
        if account:
            return self.make_response({
                'message': None,
                'account': account.to_json(is_admin=True)
            })
        else:
            return self.make_response({
                'message': 'Unable to find account',
                'account': None
            }, HTTP.NOT_FOUND)