@sh.add_function(dsp, outputs=['max_gear'])
def identify_max_gear(speed_velocity_ratios):
"""
Identifies the maximum gear of the gear box [-].
:param speed_velocity_ratios:
Speed velocity ratios of the gear box [h*RPM/km].
:type speed_velocity_ratios: dict[int | float]
:return:
Maximum gear of the gear box [-].
:rtype: int
"""
return int(max(speed_velocity_ratios))