[docs] Missing docs for Storage.from_buffer

[vadimkantorov]

https://pytorch.org/docs/master/storage.html#torch.FloatStorage.from_buffer

This method is useful when ingesting byte streams/arrays from external programs like sox or ffmpeg.

[albanD]

Not a good justification but I think the historical reason is that we did not want the users to use it directly as it is fairly unsafe

[vadimkantorov]

In absence of reinterpret functionality, this can serve as a crude substitute... In my case I read some external program byte output. I think this scenario is fairly frequent

[vadimkantorov]

But if there is another method for this use case and reinterpret, I would be happy to abandon this from_buffer thing :)

[albanD]

I agree that a good documentation explaining the details of how to use this function and a warning that is it only advanced user would be useful.

[ConfuzedCoder]

I want to reverse ToTensor transformation, Can someone add documentation for from_buffer().