DualSuspensionSteering is Physics.Interactions.Interaction:
    .doc: """
Base class for various steering mechanisms, given two SingleMateSuspensions,
both having the compatible steering trait.
"""
    knuckle_angle is Real
    knuckle_length is Real
    left_suspension is Vehicles.Suspensions.SingleMateSuspension with Vehicles.Suspensions.Traits.Steering reference
    right_suspension is Vehicles.Suspensions.SingleMateSuspension with Vehicles.Suspensions.Traits.Steering reference
    connectors: []
