ResultSingleOptional testkit request#260

JuliaKovtun wants to merge 2 commits intoneo4jrb:5.0neo4jrb/neo4j-ruby-driver:5.0from

JuliaKovtun:testkit-single-opt-requestJuliaKovtun/neo4j-ruby-driver:testkit-single-opt-requestCopy head branch name to clipboard