Error(runtime::types::unexpected_type)

  💥 Unexpected type
   ╭─[tests/diagnostics/unexpected_type.oy:1:1]
 1 │ ~main<argc><argv>{<
 2 │     // So I want the length of the integer 43 (:
 3 │     my_var = len<43>;
   ·                  ─┬
   ·                   ╰── Unexpected type `int`
 4 │     return 0;
 5 │ >}
   ╰────
  help: Try using a `Array or String` type.
