docs: def four_motor_drivetrain(
      lr_motor, rr_motor, lf_motor, rf_motor, x_wheelbase=2, speed=5, deadzone=None
  ):
      """
          .. deprecated:: 2018.2.0
             Use :class:`FourMotorDrivetrain` instead
      """
      return FourMotorDrivetrain(x_wheelbase, speed, deadzone).get_vector(
          lr_motor, rr_motor, lf_motor, rf_motor
      )