[v1.6.0 patch] Install method docstrings from PyRRef to RRef (#40620)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/40461
It turned out `:inheried-members:` (see [doc](https://www.sphinx-doc.org/en/master/usage/extensions/autodoc.html#directive-autoclass)) is not really usable.
Because pybind11 generates a docstring that writes `self` as parent class, `rpc.PyRRef`, type.
As a workaround, I am pulling docstrings on parent-class, `PyRRef` class, into subclass, `RRef`. And do surgery on the docstring generated by pybind11.
{F241283111}
ghstack-source-id: 106472496
P134031188
Differential Revision: D7933834
fbshipit-source-id: c03a8a4c9d98888b64492a8caba1591595bfe247
Co-authored-by: Shihao Xu <shihaoxu@fb.com>
