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torch.nn.utils.rnn.invert_permutation#

torch.nn.utils.rnn.invert_permutation(permutation)[source]#

Returns the inverse of permutation.

This is useful for converting between sorted and unsorted indices in a PackedSequence.

Parameters: permutation (Tensor, optional) – a 1-D tensor of indices to invert
Return type: Optional[Tensor]

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