I need to pad a 3x3 tensor on all sides with some random values sampled from either the tensor itself or from a distribution. So, a 2d tensor
1 2 3
4 5 6
7 8 9

after padding becomes
4 1 2 2 3
1 1 2 3 2
1 4 5 6 4
3 7 8 9 2
2 2 1 3 3

or
0.22  0.55   0.91   0.11  0.65
0.01   1       2      3   0.99
0.23   4       5      6   0.37
0.43   7       8      9   0.41
0.89  0.13   0.25   0.71  0.93

Is there any way to do this in pytorch?