   ###
 
   seek: (key, callback) ->
-    key = new Buffer key unless Buffer.isBuffer key
-    lock()
-    @self.seek key, afterSeek callback
+    @self.seek toBuffer(key), @_wrapSeek callback
 
 
   ###

      callback = options
      options = null

    callback null, getValue options


  ###

  ###

  prev: (callback) ->
    @self.prev @_wrapSeek callback, true


  ###
