def vsplit(ary, indices_or_sections):
    if ary.ndim <= 1:
        raise ValueError('Cannot vsplit an array with less than 2 dimensions')
    return split(ary, indices_or_sections, 0)
Splits an array into multiple sub arrays along the first axis.
dataset/ETHPy150Open pfnet/chainer/cupy/manipulation/split.py/vsplit