Filters simulations according to the criteria specified in the generator_config.
_make_kde_data(simulations=None, theta=None)
    Generates KDE data from simulations.
_mlp_get_processed_data_for_theta(random_seed_tuple)
    Helper function for generating training data for MLPs.
_cpn_get_processed_data_for_theta(random_seed_tuple)
    Helper function for generating training data for CPNs.
_get_rejected_parameter_setups(random_seed_tuple)
    Helper function that collectes parameters sets which were rejected
