message: import ltl evaluators in benchmark_runner
diff: @@ -18,6 +18,11 @@ from bark.runtime.commons.parameters import ParameterServer
  from bark.runtime.scenario.scenario import Scenario
  from bark.core.world.evaluation import *
  +# ltl lib is only build conditionally
  +try:
  + from bark.core.world.evaluation.ltl import *
  +except:
  + pass
  # contains information for a single benchmark run
  class BenchmarkConfig:
  