How to use OR and not equal to condition in PCS email notification template.

Summary:

How to use OR and not equal to condition in PCS email notification template in a single condition. I am using below but doesn't look to be correct.

{{#or #neq payload.frmsignatoryppr.respgetfusfiles.rec_invoice_installment_data.attribute1 "" #neq payload.frmsignatoryppr.respgetfusfiles.rec_invoice_installment_data.attribute2 ""}}

 <tr style="text-align:left;color:red">

    <th colspan="7" >{{{attribute1}}}{{{attribute2}}}</th>    

   </tr>

{{/neq}}

{{/neq}}

{{/or}}

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