Splits a tensor into sub tensors. If `num_or_size_splits` is an integer, then `value` is split along dimension `axis` into `num_split` smaller tensors. This requires that `num_split` evenly divides `value.shape[axis]`. If `num_or_size_splits` is a 1-D Tensor (or list), we call it `size_spl
(value, num_or_size_splits, axis=0, num=None, name="split")
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