1. joinwiz
   1. (trait)ComputationEngine
   2. (trait)LowLevelMapColumnSyntax
   3. (object)
      syntax
   4. (object)
      wiz
   1. joinwiz.dataset
      1. (trait)Collect
      2. (trait)Distinct
      3. (trait)Filter
      4. (trait)FlatMap
      5. (trait)GroupByKey
      6. (trait)Join
      7. (trait)KeyValueGroupped
      8. (trait)Map
      9. (trait)UnionByName
   2. joinwiz.expression
      1. (trait)ExpressionEvaluator
   3. joinwiz.spark
      1. (object)
         SparkExpressionEvaluator