PR for #28 - ElvisOperatorFilter#63

chess-equality wants to merge 2 commits intoBFergerson:v0.4BFergerson/Arthur:v0.4from

chess-equality:feature/issue-28/ElvisOperatorFilter-and-SafeNavigationOperatorFilterchess-equality/Arthur:feature/issue-28/ElvisOperatorFilter-and-SafeNavigationOperatorFilterCopy head branch name to clipboard