vel_to_rest# madcubapy.utils.vel_to_rest(vel, radial_velocity, doppler_rest, doppler_convention='radio')[source]# Convert velocty to rest frequency. Parameters: velQuantityVelocity. radial_velocityQuantityRadial velocity of the source relative to the observer. doppler_restQuantityRest frequency of the line. doppler_convention{“radio”, “relativistic”}, default: “radio”The Doppler convention to use. Returns: rest_freqQuantityRest frequency.