˲jFzddlmZmZddlmZddlmZddlmZddgZ GddeZ Gd deZ d S) )TupleUnion)Tensor)_size)ModuleFlatten UnflattencleZdZUdZddgZeed<eed<d dededdffd Zd edefd Z de fd Z xZ S) r a Flattens a contiguous range of dims into a tensor. For use with :class:`~nn.Sequential`, see :meth:`torch.flatten` for details. Shape: - Input: :math:`(*, S_{\text{start}},..., S_{i}, ..., S_{\text{end}}, *)`,' where :math:`S_{i}` is the size at dimension :math:`i` and :math:`*` means any number of dimensions including none. - Output: :math:`(*, \prod_{i=\text{start}}^{\text{end}} S_{i}, *)`. Args: start_dim: first dim to flatten (default = 1). end_dim: last dim to flatten (default = -1). Examples:: >>> input = torch.randn(32, 1, 5, 5) >>> # With default parameters >>> m = nn.Flatten() >>> output = m(input) >>> output.size() torch.Size([32, 25]) >>> # With non-default parameters >>> m = nn.Flatten(0, 2) >>> output = m(input) >>> output.size() torch.Size([160, 5]) start_dimend_dimrreturnNcdt||_||_dSN)super__init__r r )selfr r __class__s IC:\Projects\Historical\venv\Lib\site-packages\torch/nn/modules/flatten.pyrzFlatten.__init__/s+ " inputcB||j|jSr)flattenr r rrs rforwardzFlatten.forward4s}}T^T\:::rc&d|jd|jS)Nz start_dim=z , end_dim=)r r rs r extra_reprzFlatten.extra_repr7sDDNDDdlDDDr)rr) __name__ __module__ __qualname____doc__ __constants__int__annotations__rrrstrr __classcell__rs@rr r s:!),MNNN LLL#C ;V;;;;;ECEEEEEEEErceZdZUdZeeeefZddgZe eefe d<e e efe d<de eefde e efddffd Z dZ dZd edefd Zdefd ZxZS) r a Unflattens a tensor dim expanding it to a desired shape. For use with :class:`~nn.Sequential`. * :attr:`dim` specifies the dimension of the input tensor to be unflattened, and it can be either `int` or `str` when `Tensor` or `NamedTensor` is used, respectively. * :attr:`unflattened_size` is the new shape of the unflattened dimension of the tensor and it can be a `tuple` of ints or a `list` of ints or `torch.Size` for `Tensor` input; a `NamedShape` (tuple of `(name, size)` tuples) for `NamedTensor` input. Shape: - Input: :math:`(*, S_{\text{dim}}, *)`, where :math:`S_{\text{dim}}` is the size at dimension :attr:`dim` and :math:`*` means any number of dimensions including none. - Output: :math:`(*, U_1, ..., U_n, *)`, where :math:`U` = :attr:`unflattened_size` and :math:`\prod_{i=1}^n U_i = S_{\text{dim}}`. Args: dim (Union[int, str]): Dimension to be unflattened unflattened_size (Union[torch.Size, Tuple, List, NamedShape]): New shape of the unflattened dimension Examples: >>> input = torch.randn(2, 50) >>> # With tuple of ints >>> m = nn.Sequential( >>> nn.Linear(50, 50), >>> nn.Unflatten(1, (2, 5, 5)) >>> ) >>> output = m(input) >>> output.size() torch.Size([2, 2, 5, 5]) >>> # With torch.Size >>> m = nn.Sequential( >>> nn.Linear(50, 50), >>> nn.Unflatten(1, torch.Size([2, 5, 5])) >>> ) >>> output = m(input) >>> output.size() torch.Size([2, 2, 5, 5]) >>> # With namedshape (tuple of tuples) >>> input = torch.randn(2, 50, names=('N', 'features')) >>> unflatten = nn.Unflatten('features', (('C', 2), ('H', 5), ('W', 5))) >>> output = unflatten(input) >>> output.size() torch.Size([2, 2, 5, 5]) dimunflattened_sizerNc.tt|tr||n:t|t r||ntd||_||_ dS)Nz'invalid argument type for dim parameter) rr isinstancer%_require_tuple_intr'_require_tuple_tuple TypeErrorr+r,)rr+r,rs rrzUnflatten.__init__ps  c3   G  # #$4 5 5 5 5 S ! ! G  % %&6 7 7 7 7EFF F 0rc&t|trVt|D]D\}}t|ts*tddt |jd|zEdStddt |jz)Nz*unflattened_size must be tuple of tuples, but found element of type  at pos z,unflattened_size must be a tuple of tuples, zbut found type )r.tuple enumerater1typer rridxelems rr0zUnflatten._require_tuple_tuples eU # # &u--   T!$..#DYtDzz7JYYTWYYZ F :6U 466 7   rc.t|ttfrVt|D]D\}}t|ts*t ddt |jd|zEdSt dt |j)Nz(unflattened_size must be tuple of ints, r3r4z9unflattened_size must be a tuple of ints, but found type )r.r5listr6r%r1r7r r8s rr/zUnflatten._require_tuple_ints eeT] + + &u--   T!$,,#BYtDzz7JYYTWYYZ F ^U H\ ^ ^   rrcB||j|jSr) unflattenr+r,rs rrzUnflatten.forwardstx)>???rc&d|jd|jS)Nzdim=z, unflattened_size=)r+r,rs rrzUnflatten.extra_reprsJdhJJ43HJJJr)r r!r"r#rr'r% NamedShaper$rr&rrr0r/rrrr(r)s@rr r ;s',,\uS#X'J./M sCxE:-.... 1c? 16;E:rGs k "+E+E+E+E+Ef+E+E+E\cKcKcKcKcKcKcKcKcKcKr