It would be nice to pass multiple actions to a checkIf method , the same way as a check allows through the comma.

So, for example, instead of writing this:

.check(
   checkIf("${first.exists()}")(do_first),
   checkIf("$first.exists()}")(do_second), 
   checkIf("${first.exists()}")do_third)

it would be nice to have API as follows:

check(checkIf("${first.exists()}")(do

Please, add getBooleanParam to SimulationConfig:

object SimulationConfig {

  def getStringParam(path: String): String           = simulationConfig.get[String](path)
  def getIntParam(path: String): Int                 = simulationConfig.get[Int](path)
  def getDoubleParam(path: String): Double           = simulationConfig.get[Double](path)
  def getDurationParam(path: String): Finite