# Copyright (c) Facebook, Inc. and its affiliates.
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
transpose last 2 dimensions of the input
import torch.nn as nn
def __init__(self, deconstruct_idx=None):
self.deconstruct_idx = deconstruct_idx
[docs] def forward(self, x):
if self.deconstruct_idx is not None:
x = x[self.deconstruct_idx]
return x.transpose(-2, -1)