How to use the fmpy.ssp.simulation.simulate_ssp function in FMPy

def test_simulate_sample_system_with_parameters(self):

        ssv_filename = self.ssp_example_path('SampleSystemParameterValues.ssv')
        parameter_set = read_ssv(ssv_filename)

        filename = self.ssp_example_path('SampleSystem.ssp')
        sine = lambda t: np.sin(t * 2 * np.pi)
        result = simulate_ssp(filename, stop_time=1.0, step_size=0.01, parameter_set=parameter_set, input={'In1': sine})

        # check if the input has been applied correctly
        self.assertTrue(np.all(np.abs(result['In1'] - sine(result['time'])) < 0.01))

def test_simulate_sub_system(self):

        ssp_filename = self.ssp_example_path('SampleSystemSubSystem.ssp')
        sine = lambda t: np.sin(t * 2 * np.pi)
        result = simulate_ssp(ssp_filename, stop_time=1.0, step_size=0.01, input={'In1': sine})

        # check if the input has been applied correctly
        self.assertTrue(np.all(np.abs(result['In1'] - sine(result['time'])) < 0.01))

from fmpy.ssp.simulation import simulate_ssp
from fmpy.util import plot_result

#model_name = "HelloWorld"
#mo_file = "/var/oscli/clones/openstudio-workflow/lib/openstudio/workflow/jobs/HelloWorld.mo"
ssp_filename = sys.argv[1]
run_dir = sys.argv[2] + '/FMU'
fmu_start_time = int(sys.argv[3])
fmu_stop_time = int(sys.argv[4])
fmu_time_step = int(sys.argv[5])
os.mkdir(run_dir)
os.chdir(run_dir)
print("os.getcwd():", os.getcwd())
print("Simulating %s..." % ssp_filename)
result = simulate_ssp(ssp_filename, start_time=fmu_start_time, stop_time=fmu_stop_time, step_size=fmu_time_step, run_dir=run_dir)

show_plot=True

if show_plot:
    dir, _ = os.path.split(run_dir)
    save_name = dir + '/ssp.png'
    save_name2 = dir + '/temp.png'
    print("Plotting results in directory:",save_name)
    print("run_dir:",run_dir)
    #plot_result(result, names=['space.electric_demand', 'space.district_heating', 'space.district_cooling'], window_title=ssp_filename, filename=save_name)
    #plot_result(result, names=['space.zone_temp'], window_title=ssp_filename, filename=dir + '/temp.png')
    fig1 = pl.figure()
    ax1 = fig1.add_subplot()
    ax1.plot(result['electric.y'], 'b--')
    ax1.plot(result['space.district_heating'], 'r')
    ax1.plot(result['space.district_cooling'], 'g')

print("os.environ:", os.environ)
import matplotlib
matplotlib.use('Agg')

from fmpy.ssp.simulation import simulate_ssp
from fmpy.util import plot_result

#model_name = "HelloWorld"
#mo_file = "/var/oscli/clones/openstudio-workflow/lib/openstudio/workflow/jobs/HelloWorld.mo"
ssp_filename = sys.argv[1]
run_dir = sys.argv[2] + '/FMU'
os.mkdir(run_dir)
os.chdir(run_dir)
print("os.getcwd():", os.getcwd())
print("Simulating %s..." % ssp_filename)
result = simulate_ssp(ssp_filename, stop_time=12960000, step_size=600)

show_plot=True

if show_plot:
    dir, _ = os.path.split(run_dir)
    save_name = dir + '/ssp.png'
    print("Plotting results in directory:",save_name)
    print("run_dir:",run_dir)
    plot_result(result, names=['time', 'space.TRooMea'], window_title=ssp_filename, filename=save_name)

print('result: ', result)
print('Done.')

print("os.environ:", os.environ)
import matplotlib
matplotlib.use('Agg')

from fmpy.ssp.simulation import simulate_ssp
from fmpy.util import plot_result

#model_name = "HelloWorld"
#mo_file = "/var/oscli/clones/openstudio-workflow/lib/openstudio/workflow/jobs/HelloWorld.mo"
ssp_filename = sys.argv[1]
run_dir = sys.argv[2] + '/FMU'
os.mkdir(run_dir)
os.chdir(run_dir)
print("os.getcwd():", os.getcwd())
print("Simulating %s..." % ssp_filename)
result = simulate_ssp(ssp_filename, stop_time=12960000, step_size=600)

show_plot=True

if show_plot:
    print("Plotting results...")
    dir, _ = os.path.split(ssp_filename)
    save_name = dir + 'ssp.png'
    plot_result(result, names=['time', 'space.TRooMea'], window_title=ssp_filename, filename=save_name)

print('result: ', result)
print('Done.')

def simulate_controlled_drivetrain(show_plot=True):
    """ Download and simulate ControlledDrivetrain.ssp

    Parameters:
        show_plot     plot the results
    """

    ssp_filename = r'ControlledDrivetrain.ssp'

    download_file('https://github.com/CATIA-Systems/FMPy/releases/download/v0.1.1/' + ssp_filename, checksum='45e667ed')

    print("Simulating %s..." % ssp_filename)
    result = simulate_ssp(ssp_filename, stop_time=4, step_size=1e-3)

    if show_plot:
        print("Plotting results...")
        plot_result(result, names=['reference.y', 'drivetrain.w', 'controller.y'], window_title=ssp_filename)

    print('Done.')

    return result