def body(id, t)
      [id, t.id, t.date.utc.iso8601, t.amount.to_i, t.prefix, t.bnf, t.details].join(' ')
    end
def body(id, t)
      [id, t.id, t.date.utc.iso8601, t.amount.to_i, t.prefix, t.bnf, t.details].join(' ')
    end
def body ( id , t ) [ id , t . id , t . date . utc . iso8601 , t . amount . to_i , t . prefix , t . bnf , t . details ] . join ( ' ' ) end
Create the body for transaction signature.
 +id+:: The paying wallet ID
 +t+:: Transaction, instance of Txn
Create the body for transaction signature . + id + :: The paying wallet ID + t + :: Transaction instance of Txn