Define an object in the defaults datastore. Redefinition is not allowed.

• Type: Function
• Arguments:
  • id: A unique string id for this object. A-Za-z0-9_ are allowed.
  • objectClass: The class of the object. This must be SmutBook.Persistence.PersistentObject or a subclass thereof.
  • defaults: A key-value set defining the default field values of this object.
• Returns: a Proxy-wrapped instantiation of the defined object.
• Throws: Error if an object of the given id has already been defined.