(a, ndim)
| 626 | |
| 627 | |
| 628 | def _atleast_nd(a, ndim): |
| 629 | # Ensures `a` has at least `ndim` dimensions by prepending |
| 630 | # ones to `a.shape` as necessary |
| 631 | return array(a, ndmin=ndim, copy=None, subok=True) |
| 632 | |
| 633 | |
| 634 | def _accumulate(values): |
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