============================================
primitive
============================================

primitive map<Int as int32, Address as remaining>;
primitive bounced<Message>;
primitive Int?;

---

(source_file
  (primitive_statement
    type: (map_type
      key: (type_identifier)
      tlb_key: (tlb_serialization
        type: (identifier))
      value: (type_identifier)
      tlb_value: (tlb_serialization
        type: (identifier))))
  (primitive_statement
    type: (bounced_type
      message: (type_identifier)))
  (primitive_statement
    type: (type_identifier)))
