Summary

Releated static is

• PyNumberMethod
• PyMappingMethod
• PySequenceMethod
  for now, they are using AtomicCell for storing methods, however, crossbeam-utils 0.8.10 make AtomicCell must impl Drop(Because internally it's become a MaybeUninit), so PyXXXXMethod can't be made static

Detailed Explanation

The current method #4293
Using Lazy will cause overhead for every visit. But according to this: https://docs.rs/crossbeam-utils/0.8.10/src/crossbeam_utils/atomic/atomic_cell.rs.html#33-47. using MaybeUninit can prevent some unsound, so I have no idea what we can do here to remove this overhead

Drawbacks, Rationale, and Alternatives

Using Lazy for static have overhead, which might be unnecessary.

Unresolved Questions

I have no idea what we can do here to remove this overhead of using once_cell::sync::Lazy