Github user ottobackwards commented on a diff in the pull request:
https://github.com/apache/metron/pull/1064#discussion_r195931103
--- Diff: metron-stellar/stellar-common/README.md ---
@@ -54,6 +54,12 @@ The Stellar language supports the following:
* The ability to have parenthesis to make order of operations explicit
* User defined functions, including Lambda expressions
+### Boolean Expressions
+
+Similar to python and javascript, empty collections (e.g. `[]` and
--- End diff --
Or am i miss understanding the explicit null case?
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