ENH: expand_dims
delegation
#450
Merged
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This merge request is about delegate functions (#100).
The expand_dims delegate function is introduced here. It is meant to support a sequence of integers rather than a single integer (as specified in the standard array API) for the axis parameter.
I found that NumPy, JAX, and Dask support this feature, but PyData Sparse, Torch (with unsqueeze), and CuPy only accept a single integer.
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