message: this name should match the function name
diff: @@ -38,7 +38,7 @@ fn main() -> Result<()> {
  let import_object = imports! {
  "env" => {
  - "print_i32" => func!(print_num, [i32] -> [i32]),
  + "print_num" => func!(print_num),
  "memory" => memory,
  "global" => global,
  "table" => table,
  