axis() returns np.float64 and not Float64

[ctkelley]

The docs seem to say that

x, y, z, w = axis()

returns four Float64s. However

julia> x, y, z, w = axis()
Python: (np.float64(0.0), np.float64(1.0), np.float64(0.0), np.float64(1.0))

Is this what is supposed to happen?