'Bootstrap indices
Args:
table: Not used (but part of the signature)
Returns:
tuple (out_of_sample, sample) indices'

def __call__(self, table=None):

    rgen = np.random.RandomState(self.random_state)
    sample = rgen.randint(0, self.size, self.size)
    sample.sort()
    insample = np.ones((self.size,), dtype=np.bool)
    insample[sample] = False
    remaining = np.flatnonzero(insample)
    return (remaining, sample)
