@Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;

    GraphEdge graphEdge = (GraphEdge)o;

    if (myType != graphEdge.myType) return false;
    if (!Objects.equals(myUpNodeIndex, graphEdge.myUpNodeIndex)) return false;
    if (!Objects.equals(myDownNodeIndex, graphEdge.myDownNodeIndex)) return false;
    if (!Objects.equals(myTargetId, graphEdge.myTargetId)) return false;

    return true;
  }
@Override
  public boolean equals(Object o)