Function GetNumberOfCells

Common/DataModel/vtkPath.h:76–76

* vtkPath doesn't use cells. These methods return trivial values. */

   * vtkPath doesn't use cells. These methods return trivial values.
   */
  vtkIdType GetNumberOfCells() override { return 0; }
  using vtkDataSet::GetCell;
  vtkCell* GetCell(vtkIdType) override { return nullptr; }
  void GetCell(vtkIdType, vtkGenericCell*) override;