The code changes in `pattern_test.go` update the ARR body parsing logic. The message body parsing now correctly handles ARR bodies with a different pattern format. This ensures accurate extraction of data based on patterns and improves the overall functionality of the code.
The code changes in `aviation_parser_test.go` update the ARR body parsing logic. The `ParseHeader` function now correctly handles ARR bodies with optional time components. This ensures accurate parsing of ARR bodies and improves the overall functionality of the aviation parser.