PyTorch documentation
PyTorch is an optimized tensor library for deep learning using GPUs
and CPUs.
Features described in this documentation are classified by release
status:
Stable:  These features will be maintained long-term and there
   should generally be no major performance limitations or gaps in
   documentation. We also expect to maintain backwards compatibility
   (although breaking changes can happen and notice will be given one
   release ahead of time).
Beta:  These features are tagged as Beta because the API may
   change based on user feedback, because the performance needs to
   improve, or because coverage across operators is not yet complete.
   For Beta features, we are committing to seeing the feature through
   to the Stable classification. We are not, however, committing to
   backwards compatibility.
Prototype:  These features are typically not available as part of
   binary distributions like PyPI or Conda, except sometimes behind