branches.rb

{
      "tree" => {
        "id" => "26",
        "name" => "My Awesome Tree",
        "variable_ids" => ["ValueDriver-1"],
        "variables" => [
          {
            "id" => "ValueDriver-1",
            "name" => "My Value Driver",
            "type" => "ValueDriver",
            "variable_ids" => ["ValueDriver-2", "Operand-1", "Input-1"],
            "variables" => [
              {
                "id" => 'ValueDriver-2',
                "type" => "ValueDriver",
                "name" => "Production Value Driver",
                "variable_ids" => ['Input-2'],
                "variables" => [
                  { "id" => 'Input-2', "type" => "Input", "name" => 'Production Costs', "value" => 10 }
                ]
              },
              { "id" => 'Operand-1', "type" => 'Operand', "name" => 'Operand', "value" => "+" },
              { 
                  "id" => 'Input-1',
                  "type" => "Input",
                  "name" => 'Development Costs',
                  "baseline" => 4,
                  "variation" => {
                        "scenario_id" => 1,
                        "value" => 2,
                        "percentage_diff" => -50
                  }
            }
            ]
          }
        ]
      }
    }