<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def export_account_state(self, account_state):
 """ Make an account state presentable to external consumers """

        return {
            'address': account_state['address'],
            'type': account_state['type'],
            'credit_value': '{}'.format(account_state['credit_value']),
            'debit_value': '{}'.format(account_state['debit_value']),
            'lock_transfer_block_id': account_state['lock_transfer_block_id'],
            'block_id': account_state['block_id'],
            'vtxindex': account_state['vtxindex'],
            'txid': account_state['txid'],
        }