description: "Standalone with default maxWireVersion of 0" uri: "mongodb://a" phases: [ { responses: [ ["a:27017", { ok: 1, helloOk: true, isWritablePrimary: true }] ], outcome: { servers: { "a:27017": { type: "Standalone", setName: } }, topologyType: "Single", logicalSessionTimeoutMinutes: null, setName: , compatible: false } } ]