def get_account_descendants(self, account):
result = []<EOL>for child in account.accounts:<EOL><INDENT>self._get_account_and_descendants_(child, result)<EOL><DEDENT>return result<EOL>
Retrieves an account's descendants from the general ledger structure
given the account name.

:param account_name: The account name.

:returns: The decendants of the account.