Since the topology package will be migrated first, it needs to function with both the driver and driverlegacy packages. To enable this, we need a secondary connection type that implements the legacy functionality. This type is called legacyConnection and it handles the glue code necessary for driverlegacy to continue functioning. The type should be implemented as outlined above. The ConnectionLegacy method of Server returns this type, although the actual return type remains a
connection.Connection.