code: function ImmutableCoreModelCache (args) {
      // require model
      this.assert(args.model && args.model.ImmutableCoreModel, 'model required')
      // require redis
      this.assert(args.redis, 'redis required')
      // store args
      this.model = args.model
      this.redis = args.redis
  }
docs: @function ImmutableCoreModelCache
  
  instantiate new ImmutableCoreModelCache instance
  
  @param {object} args
  @param {ImmutableCoreModel} args.model
  
  @returns {ImmutableCoreModelCache}