Github user ottobackwards commented on the issue: https://github.com/apache/metron/pull/687 POV issue I think. Stellar has the LANGUAGE ( grammar ), the default implementation, and the 'host' execution mechanics. `:=` is part of the host execution mechanics. The issue may not be being the same as much as the necessity for `:=` as a host construct at all if things are done inside stellar. Does that make sense?
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