Github user cestella commented on the issue: https://github.com/apache/metron/pull/687 well, `:=` is in the shell and also in the enrichment configuration (see [here](https://github.com/apache/metron/tree/master/metron-platform/metron-enrichment#stellar-enrichment-configuration). Seems like if we're promoting this to the language, we should make things consistent in one way or the other.
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