python.Hto4lConfig.Hto4lConfig Node1 python.Hto4lConfig.Hto4l Config + nEvents + random_seed + running_process - __output_events_file_name - __fixed_parameters - __configurable_parameters - __run_card_decorators - __enable_reweighting - __run_directory - __logger + __init__() + generate() + generateRunCard() + generateEvents() + add_parameter() + add_parameter_set() + emit_heartbeat() + fix_parameter() + runHto4l() + run_directory() + configurable_parameters() + fixed_parameters() + logger() + run_card_decorators() + run_card_path() Node2 object Node2->Node1 Node3 string Node3->Node1 -_hto4l_executable