Function mruby_sys::mrb_get_values_at

pub unsafe extern "C" fn mrb_get_values_at(
    mrb: *mut mrb_state, 
    obj: mrb_value, 
    olen: mrb_int, 
    argc: mrb_int, 
    argv: *const mrb_value, 
    func: Option<unsafe extern "C" fn(arg1: *mut mrb_state, arg2: mrb_value, arg3: mrb_int) -> mrb_value>
) -> mrb_value