Try to test your multiline pattern with this Go playground: https://www.elastic.co/guide/en/beats/filebeat/1.2/multiline-examples.html#_testing_your_regexp_pattern_for_multiline
Try to test your multiline pattern with this Go playground: https://www.elastic.co/guide/en/beats/filebeat/1.2/multiline-examples.html#_testing_your_regexp_pattern_for_multiline
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