A	B	C	D
1	Main
2		torch.amp	mixed precision
3		torch.autograd
4		torch.compile	Very important	https://pytorch.org/docs/stable/generated/torch.compile.html
5		torch.cuda
6		torch.distributed
7		torch.func
8		torch.futures
9		torch.fx
10		torch.nn
11		torch.onnx
12		torch.random
13		torch.utils.benchmark
14		https://docs.google.com/document/d/1GgvOe7C8_NVOMLOCwDaYV1mXXyHMXY7ExoewHqooxrs/edit?pli=1#heading=h.fh8zzonyw8ng