- A BT could have both account and iban, and a Supplier could have only IBAN set
- In this case, matching by either (only account) gives no match
- Match by Account OR IBAN, use `or_filters`
- If matched, set both account no. and IBAN in Bank Party Mapper
- Explain AutoMatchParty
- Add type hints to return values
- Use `set_value` to set values in BT after matching since its an after submit event
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