Packages 
Package Description
com.google.appengine.api.appidentity.dev  
com.google.appengine.api.blobstore.dev  
com.google.appengine.api.capabilities.dev  
com.google.appengine.api.datastore.dev  
com.google.appengine.api.files.dev  
com.google.appengine.api.images.dev  
com.google.appengine.api.log.dev  
com.google.appengine.api.mail.dev  
com.google.appengine.api.memcache.dev  
com.google.appengine.api.prospectivesearch.dev

Implementation Notes

com.google.appengine.api.search.dev  
com.google.appengine.api.socket.dev  
com.google.appengine.api.taskqueue.dev  
com.google.appengine.api.urlfetch.dev  
com.google.appengine.api.users.dev  
com.google.appengine.api.xmpp.dev  
com.google.appengine.tools.development.testing