Function R_altrep_data1_unchecked 

pub unsafe extern "C-unwind" fn R_altrep_data1_unchecked(
    x: SEXP,
) -> SEXP

Unchecked FFI binding for R_altrep_data1. Generated from source location line 658, column 12. Generated from source file miniextendr-api/src/sys.rs.