test/models.rb in mongo_mapper-0.7.2 vs test/models.rb in mongo_mapper-0.7.3

@@ -65,11 +65,10 @@
 class Message
   include MongoMapper::Document
 
   key :body, String
   key :position, Integer
-  key :_type, String
   key :room_id, ObjectId
 
   belongs_to :room
 end
 
@@ -92,11 +91,10 @@
 end
 
 class Account
   include MongoMapper::Document
   
-  key :_type, String
   key :room_id, ObjectId
   key :last_logged_in, Time
   
   belongs_to :room
 end
@@ -156,13 +154,11 @@
 end
 
 class Media
   include MongoMapper::EmbeddedDocument
 
-  key :_type, String
   key :file, String
-  
   key :visible, Boolean
 end
 
 class Video < Media
   key :length, Integer
@@ -190,10 +186,9 @@
 
 module TrModels
   class Transport
     include MongoMapper::EmbeddedDocument
 
-    key :_type, String
     key :license_plate, String
     key :purchased_on, Date
   end
 
   class Car < TrModels::Transport