         @signer_private_keys = []
         @signed = true
         return
-    
+
     serialize:()->
         type.signed_transaction.toObject @
-    
+
     id:()->
         throw new Error "not finalized" unless @tr_buffer
         hash.sha256(@tr_buffer).toString( 'hex' ).substring(0,40)

module.exports = _my = {}

_my.signed_transaction = ->
    
    ref_block_num: 0
    ref_block_prefix: 0
    expiration: 0

                else
                    flat_assets.push obj
                return
            flatten fees
            asset_index = 0
            for i in [0...@operations.length] by 1
                set_fee = (operation) ->
