gets the comment . concode_field_sep String reason1 concode_elem_sep Double amount concode_elem_sep String reason2 concode_elem_sep String transId concode_elem_sep String comment concode_elem_sep String partialRefundId concode_field_sep Refund setReason1 concode_elem_sep String getReason2 concode_elem_sep Refund setPartialRefundId concode_elem_sep Refund setReason2 concode_elem_sep String getPartialRefundId concode_elem_sep Refund setComment concode_elem_sep String getTransId concode_elem_sep String getReason1 concode_elem_sep Double getAmount
String function ( ) { return comment ; }