Function Rf_listAppend_unchecked 

pub unsafe extern "C-unwind" fn Rf_listAppend_unchecked(
    s: SEXP,
    t: SEXP,
) -> SEXP

Unchecked FFI binding for Rf_listAppend. Generated from source location line 865, column 12. Generated from source file miniextendr-api/src/sys.rs.