{
    "sm":{
    "model":"simulation_models/model",
    "base_constants": {
      "initialValue": 1000.0,
      "interestRate": 0.05,
      "depositRate": 1000.0
    },
    "scenarios": {
      "scenario2": {
          "constants":{  
            "initialValue" : 2000.0
          }
     }
    }
  }
}