code: function TOIInput() {
    this.proxyA = new DistanceProxy();
    this.proxyB = new DistanceProxy();
    this.sweepA = new Sweep();
    this.sweepB = new Sweep();
    this.tMax;
  }
docs: Input parameters for TimeOfImpact.
  
  @prop {DistanceProxy} proxyA
  @prop {DistanceProxy} proxyB
  @prop {Sweep} sweepA
  @prop {Sweep} sweepB
  @prop tMax defines sweep interval [0, tMax]