# [ref_impl_eiffel] [994] Add a missing postcondition to ARCH_REP_ARCHETYPE.flatten. **Category:** [Reference Implementation: Eiffel (archive)](https://discourse.openehr.org/c/reference-implementation-eiffel-archive/161) **Created:** 2010-07-08 09:26 UTC **Views:** 7 **Replies:** 0 **URL:** https://discourse.openehr.org/t/ref-impl-eiffel-994-add-a-missing-postcondition-to-arch-rep-archetype-flatten/13470 --- ## Post #1 by @svn1 Revision: 994 Author: peter\.gummer Log Message: --- **Canonical:** https://discourse.openehr.org/t/ref-impl-eiffel-994-add-a-missing-postcondition-to-arch-rep-archetype-flatten/13470 **Original content:** https://discourse.openehr.org/t/ref-impl-eiffel-994-add-a-missing-postcondition-to-arch-rep-archetype-flatten/13470