message: Replace MISSING with float, if step time not specified
diff: @@ -160,6 +160,7 @@ class BenchmarkRunner:
  behavior = benchmark_config.behavior
  parameter_server = ParameterServer(json=scenario._json_params)
  scenario_history = []
  + step = 0
  try:
  world = scenario.get_world_state()
  except Exception as e:
  @@ -180,8 +181,9 @@ class BenchmarkRunner:
  self._append_to_scenario_history(scenario_history, world, scenario)
  self._reset_evaluators(world, scenario._eval_agent_ids)
  step_time = parameter_server["Simulation"]["StepTime", "", 0.2]
  + if not isinstance(step_time, float):
  + step_time = 0.2
  terminal = False
  - step = 0
  terminal_why = None
  while not terminal:
  try:
  