     callback err
     return true
 
+
   @create = permit 'create credential',
 
     success: (client, data, callback)->

              return  if failed err, callback, credential, credData
              callback null, credential

  delete: permit

    advanced: [

          (signature String, Function)
        create        :
          (signature Object, Function)
        some          : [
          (signature Object, Function)
          (signature Object, Object, Function)
        ]
      instance        :
        delete        :
          (signature Function)
