una/plugins/chargebee/ChargeBee/Models/CreditNoteEstimateLineItemTax.php

<?php

class ChargeBee_CreditNoteEstimateLineItemTax extends ChargeBee_Model
{
  protected $allowed = array('line_item_id', 'tax_name', 'tax_rate', 'tax_amount', 'tax_juris_type', 'tax_juris_name', 'tax_juris_code');

}

?>