Function R_WeakRefKey_unchecked 

pub unsafe extern "C-unwind" fn R_WeakRefKey_unchecked(
    w: SEXP,
) -> SEXP

Get the key from a weak reference. Unchecked FFI binding for R_WeakRefKey. Generated from source location line 2231, column 12. Generated from source file miniextendr-api/src/sys.rs.