mutation RootMutation {
   startProcessing({
      kind: "product",
      filter: [
         {kind: "A",  period: "1 min"}, // type1
         {operand: "or", kind: "B",  tag: "smart"}, // type2
         {operand: "and", kind: "C",  tag: "small"} // type2
      ]
   }){kind}
}