AWS Kinesis Aggregation and Deaggregation

The `aws-kinesis-agg` Python module assists in handling the Kinesis Producer Library (KPL) message aggregation format. It provides utilities for both aggregating multiple user records into a single Kinesis record (for improved throughput and cost efficiency) and deaggregating such records back into their original user records. The library is currently at version 2.0.3 (on GitHub, PyPI shows 1.2.3) with an active, though irregular, release cadence.