Function R_altrep_data2_unchecked 

pub unsafe extern "C-unwind" fn R_altrep_data2_unchecked(
    x: SEXP,
) -> SEXP

Unchecked FFI binding for R_altrep_data2. Generated from source location line 659, column 12. Generated from source file miniextendr-api/src/sys.rs.