astropy.units.quantity_input does not work with numpy.vectorizing #6007

import astropy.units as u
import numpy as np


@np.vectorize
@u.quantity_input(t0=u.s, t1=u.s)
def example(a, t0, t1):
    return a * (t0 / t1).si


example(0, 5*u.hour, 10 * u.hour)

TypeError: Argument 't0' to function 'example' has no 'unit' attribute. You may want to pass in an astropy Quantity instead.

AttributeError: 'vectorize' object has no attribute '__name__'