i = vtkVariantCast(v, 'int')
print(f"Valid cast result: {repr(i)}")

# A failed cast returns None
v = vtkVariant("hello")
i = vtkVariantCast(v, 'int')
print(f"Invalid cast result: {repr(i)}")

#
# Comparisons and sorting: See VTK docs for more info
#
