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UnpackedDualTensor#

class torch.autograd.forward_ad.UnpackedDualTensor(primal, tangent)[source]#

Namedtuple returned by unpack_dual() containing the primal and tangent components of the dual tensor.

See unpack_dual() for more details.

count(value, /)#

Return number of occurrences of value.

index(value, start=0, stop=9223372036854775807, /)#

Return first index of value.

Raises ValueError if the value is not present.

primal: Tensor#

Alias for field number 0

tangent: Optional[Tensor]#

Alias for field number 1