Send sales order pdf as attachment in deluge

Send sales order pdf as attachment in deluge

I have tried the various deluge docs examples but none seem to work, obviously using salesorder attributes.
Help please ;-)

record_id = invoice_details[ID!= 0].ID;
 sendmail  
 [  
    fromzoho.adminuserid  
    toinput.customer_email  
    subject"New packing sheet for"  + salesorder_id
    message"Attached....."
    Attachments :templateMedical_Invoice: invoice_details record_id as PDF   // from deluge example
 ]