<?php
 class SomeModel extends AppModel {

      public $actsAs = array('Berry.Normalize');

      public $normalize = array(
          '__skip__' => array('id', 'created', 'modified'), // skip normalize fields
          '__all__' => array( // __all__ params will be apply for all fields.
              'trim' => true, // applicate function set to key
          ),
          '__default__' => array( // __default__ will be default params. this params will be apply, if each field params is not set.
              'kana' => 'KVas', // function patameter set to value
              'func' => array('a', 'b'), // if function has some patameter set to array
          ),
          'somefield' => array( // each field params.
              'func' => 'some',
          ),
      );

 }