callback({ "resource_url": "http://wedata.net/databases/mail", "created_by": "Kapur", "required_keys": "", "description": "", "name": "mail", "updated_at": "2010-03-03T03:43:09+09:00", "created_at": "2010-03-03T02:01:27+09:00", "optional_keys": "", "permit_other_keys": true })