Task: Write DAML contract for Painter, Customer and Bank
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Alice- wants to paint her house. She has money but she wants to send transfer only when job is done -
Bob- is a skilled painter and he also wants his money after the house is painted -
Bank- is intermediary. It has open accounts for Alice and Bob and should move funds only after confirmation from paricipants of the painting deal.
Write a DAML contract to execute such task.