@sh.add_function(dsp, outputs=['hev_power_model'])
def define_hev_power_model(motors_efficiencies, drive_line_efficiencies):
"""
Define Hybrid Electric Vehicle power balance model.
:param motors_efficiencies:
Electric motors efficiencies vector.
:type motors_efficiencies: tuple[float]
:param drive_line_efficiencies:
Drive line efficiencies vector.
:type drive_line_efficiencies: tuple[float]
:return:
Hybrid Electric Vehicle power balance model.
:rtype: HEV
"""
return HEV(drive_line_efficiencies, motors_efficiencies)