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- As these are new methods there should be no impact on existing users
Rejected Alternatives
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- Use of Iterator as return type: Iterable can be used in foreach loop directly and can return an Iterator if needed.
- Return List of ProducerRecord: No real reason against it but was not favored so far. Might be added by KIP-456: Helper classes to make it simpler to write test logic with TopologyTestDriver anyway.