Question about account_map

[F-TD5X]

For code in https://github.com/beancount/beangulp/blob/35fea180ed65dbe9113e1566c88ba34b38d1fcb5/beangulp/similar.py#L221C1-L222C21 which skips interpolated posting.

def amounts_map(entry):
    """Compute a mapping of (account, currency) -> Decimal balances.

    Args:
      entry: A Transaction instance.
    Returns:
      A dict of account -> Amount balance.
    """
    amounts = collections.defaultdict(Decimal)
    for posting in entry.postings:
        # Skip interpolated postings.
        if posting.meta and interpolate.AUTOMATIC_META in posting.meta:
            continue
        currency = isinstance(posting.units, amount.Amount) and posting.units.currency
        if isinstance(currency, str):
            key = (posting.account, currency)
            amounts[key] += posting.units.number
    return amounts

If there are some hand write transaction in history like:

2000-01-01 * 
    Assets:A -100 USD
    Expenses:B

And when importer generates something and let smart_importer to predict another posting, the transaction in deduplicate progress would be like:

2000-01-01 *
    Expenses:B 100 USD

The heuristic_comparator() will not consider these two transaction as duplicated because the account is not same.
One is {"Assets:A": "-100"}, and another one is {"Expenses:B": "100"}